To illustrate how long it can take Sundance Film Festival hits to arrive in theaters, look no further than "The End of Love." Mark Webber's second effort as a director premiered to strong reviews at Sundance in 2012, but is only first opening to the general public on Friday, some 14 months later. (The film is also available via on demand services.)

Webber, best known as the lead singer of Scott Pilgrim's band Sex Bob-omb in "Scott Pilgrim vs. The World," stars in "The End of Love" as "Mark Webber," a struggling actor trying to balance his fledgling career and his role as a single dad. In a twist, "The End of Love" co-stars Webber's actual son, Isaac Love, as his onscreen son. (Isaac's real mother appears in the film in flashbacks as Isaac's onscreen mother.)

"The End of Love" is an early year triumph, a thoughtful indie comedy with moments of heartbreaking -- and also heart-warming -- drama. With the film out in limited release on March 1, Webber spoke to HuffPost Entertainment about the difficulties of making "The End of Love," what he learned from his first feature, "Explicit Ills," and what famous people do when they hang out.

What was the hardest part about making this with your son?
It's like, what wasn't hard about it. It's so hard to make something seem so effortless and off-the-cuff and simple. It takes so much more effort to make something seem effortless. For me, I had to be the dad; I had to be a sad dad; I had to be the director, the production assistant, the DP [director of photography], in certain situations. It was wearing so many hats. It was a really hard movie to make, but so rewarding because of that. With Isaac, what was so cool is that he was always in the moment. So, having me orchestrate and create all these situations so I could fully inhabit this character, it turned out that anything that he would do would be right for the film. That was a really exhilarating way to make a movie.

How much of the process did you explain to Isaac?
No. What he did know was that my DP, Patrice Cochet, came over in what you could call the rehearsal period -- which was really just me seeing if I could make a movie in this way. Isaac knew that Patrice was making videos of us. From the iPhone or whatever, we've shot videos together and taken pictures, so he knows what that concept is. Eventually, it got to the point where Patrice didn't really exist. The more I didn't regard Patrice as being there, the more Isaac didn't. The film would only work if it was complete reality for Isaac. There were never any slates. There was no crew. I would get Patrice up and running and then just start living the moment with my son, based off of me knowing his moods and patterns and rhythms. Like, "OK, in this moment I know he's going to be a little cranky, so it's a good time to shoot the dinner scene."

Isaac's mother plays a small role in the film, so she was on board with this, but was it difficult to convince her that Isaac could handle such a big role?
Yeah. First and foremost, nothing matters more to us in this entire world than our child. His well-being and his safety is paramount in both our lives. We have a really great friendship and we co-parent in a really beautiful and creative way. It was easy for me to convince her because she knew I would only do this if I knew it wouldn't be harmful to Isaac. Which made it that much harder to make this movie, just because it wasn't traditional in any sense. We would shoot for 15, 20 minutes at a time with Isaac, and on days where it was just Isaac, that was our day. We would probably clock in like an hour. It was like, "All right, everyone; go home! Come back tomorrow, after naps. At about 2:30, after Isaac had his nap, we'll have another 25 minutes there." Isaac was never working. It was so non-invasive. There were no lights. There was none of that. Patrice is such a lovely great man and a father himself that everyone around was just fun to be around anyway.

During a key scene, your character goes to a party at Michael Cera's house, and people like Aubrey Plaza, Jake Johnson and Alia Shawkat are in attendance too. You know a lot of them from prior projects, but do you all hang out? Is that the reality -- minus Cera acting like a complete jerk, as he does in the film?
It is! What's really cool is that you get lucky every now and then by working with people who are really like-minded and awesome and you develop pretty strong friendships and bonds with them. Everyone who was there in that room that night came for a reason. First and foremost, we love each other and want to support each other. Amongst me and that group of friends, there's probably three or four major game nights that happen. We'll get together and play running charades or Celebrity or Scattergories. So, yeah! [Laughs] Minus Michael with a handgun and kind of being a little obnoxious -- and Michael, in reality, is the sweetest guy in the world -- it was pretty much like, "OK, here's a normal little get together."

This is your second film as a director; what did you learn on your first one that carried over here?
My first film, when I went into it, I was younger. I had made a bunch of films as an actor and had worked with a bunch of incredible directors and I thought, "I really know what I'm doing here!" I was really overly ambitious. I shot my first film on 35mm and old Panavision cameras. It had a huge cast and there were all these interconnecting stories and it was a little overly ambitious. It was a little too much at once. There's still things that I really love about my first film. The beautiful thing about making movies is that the movie still speaks to a lot of people. I'll have people come up to me and say, "I love that movie." To me, as a filmmaker, all I see are its flaws. Going into making "The End of Love," I wanted to capitalize off of the knowledge I learned from all the trial-and-error of the first one. I wanted to make a movie that had an undeniably strong emotional core. That was really about two people, whereas my first film had like 30 people. As an actor, I've always been obsessed with naturalism in film and reality. So, as a filmmaker, it was really exhilarating to create a world that really embraced that for me. It actually couldn't be more different than my first film -- just in terms of the story, the process, everything. Coming out of the making of "The End of Love," I've figured out my voice, in a way, and my style in the way I want to build off it. The next film I'm making, I'm making in a very similar way.

In the film, you play "Mark Webber, struggling actor." In reality, you've got "The End of Love" and starred in a couple of well-received indies last year, like "For a Good Time Call" and "Save the Date." Are you happy with the direction of your career?
It's funny, man; I am happy. Like, I'm definitely happy. I'm happy because I've only ever done what I wanted to do. I've had many opportunities throughout my career to sell a piece of my soul. Maybe go in a different route. Things that would compromise my happiness. And I never want that. Because I've avoided that, I'm really happy. I've only really been a part of films that I want to be a part of. Now I have a career as a filmmaker. One of the beautiful things about making your own films is that you get to share the love. For me, just the auditioning process is horrible. It's miserable. It's the worst. "Please like me! Please like me!" To now be in a position to write things for people and not have them audition. Be like, "Hey, I wrote this for you, do you want to do this? How can we make this the best for you so you can do the best work you've ever done?" It's exciting for me. That's where I see myself headed. If people want to put me in their movies, I will do it -- I'm just not as willing to jump through so many hoops anymore [laughs]. I can't! I've paid my dues and I feel like I'm in a really good place right now. I'm pretty psyched.

EARLIER: Photos from the 2013 Sundance Film Festival

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  • Lake Bell

    Director, writer and cast member Lake Bell celebrates as she comes on stage to accept her U.S. Dramatic Waldo Salt Screenwriting Award for "In A World..." during the 2013 Sundance Film Festival Awards Ceremony on Saturday, Jan. 26, 2013 in Park City, Utah. (Photo by Danny Moloshok/Invision/AP)

  • Awards Night Ceremony - 2013 Sundance Film Festival

    PARK CITY, UT - JANUARY 26: Host Joseph Gordon-Levitt speaks at the Awards Night Ceremony during the 2013 Sundance Film Festival at Basin Recreation Field House on January 26, 2013 in Park City, Utah. (Photo by Michael Loccisano/Getty Images)

  • Ryan Coogler

    Director and screenwriter Ryan Coogler accepts the U.S. Grand Jury Prize: Dramatic for "Fruitvale" during the 2013 Sundance Film Festival Awards Ceremony on Saturday, Jan. 26, 2013 in Park City, Utah. (Photo by Danny Moloshok/Invision/AP)

  • Lake Bell

    Director, writer and cast member Lake Bell poses after winning the U.S. Dramatic Waldo Salt Screenwriting Award for "In A World..." during the 2013 Sundance Film Festival Awards Ceremony on Saturday, Jan. 26, 2013 in Park City, Utah. (Photo by Danny Moloshok/Invision/AP)

  • Joseph Gordon-Levitt

    Host Joseph Gordon-Levitt applauds at the closing of the 2013 Sundance Film Festival Awards Ceremony on Saturday, Jan. 26, 2013 in Park City, Utah. (Photo by Danny Moloshok/Invision/AP)

  • Jill Soloway

    Director Jill Soloway accepts her U.S. Dramatic Directing Award for the film "Afternoon Delight" during the 2013 Sundance Film Festival Awards Ceremony on Saturday, Jan. 26, 2013, in Park City, Utah. (Photo by Danny Moloshok/Invision/AP)

  • Ryan Coogler

    Director and screenwriter Ryan Coogler reacts after accepting the U.S. Grand Jury Prize: Dramatic for "Fruitvale" during the 2013 Sundance Film Festival Awards Ceremony on Saturday, Jan. 26, 2013 in Park City, Utah. (Photo by Danny Moloshok/Invision/AP)

  • Ryan Coogler

    Director Ryan Coogler accepts the U.S. Dramatic Audience Award for the film "Fruitvale" during the 2013 Sundance Film Festival Awards Ceremony on Saturday, Jan. 26, 2013, in Park City, Utah. (Photo by Danny Moloshok/Invision/AP)

  • January Jones

    Cast member January Jones is interviewed at the premiere of "Sweetwater" during the 2013 Sundance Film Festival on Thursday, Jan. 24, 2013 in Park City, Utah. (Photo by Danny Moloshok/Invision/AP)

  • January Jones

    Cast member January Jones poses at the premiere of "Sweetwater" during the 2013 Sundance Film Festival on Thursday, Jan. 24, 2013 in Park City, Utah. (Photo by Danny Moloshok/Invision/AP)

  • Ashton Kutcher, Joshua Michael Stern, Josh Gad

    From left, actor Ashton Kutcher, who portrays Steve Jobs, director Joshua Michael Stern, and actor Josh Gad, who portrays Steve Wozniak, pose together at the premiere of "jOBS" during the 2013 Sundance Film Festival on Friday, Jan. 25, 2013 in Park City, Utah. (Photo by Danny Moloshok/Invision/AP)

  • Ashton Kutcher, Josh Gad

    Actors Ashton Kutcher, right, who portrays Steve Jobs, and Josh Gad, who portrays Steve Wozniak, pose together at the premiere of "jOBS" during the 2013 Sundance Film Festival on Friday, Jan. 25, 2013 in Park City, Utah. (Photo by Danny Moloshok/Invision/AP)

  • Jessica Alba

    Jessica Alba, a cast member in "A.C.O.D.," poses at the premiere of the film at the 2013 Sundance Film Festival, Wednesday, Jan. 23, 2013, in Park City, Utah. (Photo by Chris Pizzello/Invision/AP)

  • Jessica Alba

    Jessica Alba, a cast member in "A.C.O.D.," poses at the premiere of the film at the 2013 Sundance Film Festival, Wednesday, Jan. 23, 2013, in Park City, Utah. (Photo by Chris Pizzello/Invision/AP)

  • Amy Poehler

    Amy Poehler, a cast member in "A.C.O.D.," smiles for photographers at the premiere of the film at the 2013 Sundance Film Festival, Wednesday, Jan. 23, 2013, in Park City, Utah. (Photo by Chris Pizzello/Invision/AP)

  • Jessica Alba

    Jessica Alba, a cast member in "A.C.O.D.," smiles at fellow cast member Adam Scott as they work the press line at the premiere of the film at the 2013 Sundance Film Festival, Wednesday, Jan. 23, 2013, in Park City, Utah. (Photo by Chris Pizzello/Invision/AP)

  • Amy Poehler

    Amy Poehler, a cast member in "A.C.O.D.," is surrounded by media at the premiere of the film at the 2013 Sundance Film Festival, Wednesday, Jan. 23, 2013, in Park City, Utah. (Photo by Chris Pizzello/Invision/AP)

  • Richard Jenkins

    Richard Jenkins, a cast member in "A.C.O.D.," poses for a photographer at the premiere of the film at the 2013 Sundance Film Festival, Wednesday, Jan. 23, 2013, in Park City, Utah. (Photo by Chris Pizzello/Invision/AP)

  • Catherine O'Hara, Bo Welch

    Catherine O'Hara, left, a cast member in "A.C.O.D.," arrives with her husband Bo Welch at the premiere of the film at the 2013 Sundance Film Festival, Wednesday, Jan. 23, 2013, in Park City, Utah. (Photo by Chris Pizzello/Invision/AP)

  • Clark Duke

    Clark Duke, a cast member in "A.C.O.D.," poses at the premiere of the film at the 2013 Sundance Film Festival, Wednesday, Jan. 23, 2013, in Park City, Utah. (Photo by Chris Pizzello/Invision/AP)

  • Adam Scott

    Adam Scott, a cast member in "A.C.O.D.," poses at the premiere of the film at the 2013 Sundance Film Festival, Wednesday, Jan. 23, 2013, in Park City, Utah. (Photo by Chris Pizzello/Invision/AP)

  • Amy Poehler

    Amy Poehler, a cast member in "A.C.O.D.," poses at the premiere of the film at the 2013 Sundance Film Festival, Wednesday, Jan. 23, 2013, in Park City, Utah. (Photo by Chris Pizzello/Invision/AP)

  • Kate Bosworth, Michael Polish

    Actress Kate Boswroth, right, and her fiance director Michael Polish, left, pose together at the premiere of "Big Sur" during the 2013 Sundance Film Festival on Wednesday, Jan. 23, 2013 in Park City, Utah. (Photo by Danny Moloshok/Invision/AP)

  • Kate Bosworth

    Actress Kate Bosworth poses at the premiere of "Big Sur" during the 2013 Sundance Film Festival on Wednesday, Jan. 23, 2013 in Park City, Utah. (Photo by Danny Moloshok/Invision/AP)

  • Juno Temple

    Cast member Juno Temple poses at the premiere of "Afternoon Delight" during the 2013 Sundance Film Festival on Monday, Jan. 21, 2013 in Park City, Utah. (Photo by Danny Moloshok/Invision/AP)

  • Josh Radnor

    Cast member Josh Radnor is interviewed at the premiere of "Afternoon Delight" during the 2013 Sundance Film Festival on Monday, Jan. 21, 2013 in Park City, Utah. (Photo by Danny Moloshok/Invision/AP)

  • Jane Lynch

    Cast member Jane Lynch poses at the premiere of "Afternoon Delight" during the 2013 Sundance Film Festival on Monday, Jan. 21, 2013 in Park City, Utah. (Photo by Danny Moloshok/Invision/AP)

  • Josh Radnor, Jill Soloway, Kathryn Hahn, Juno Temple

    Writer and director Jill Soloway, second left, and cast members Josh Radnor, left, Kathryn Hahn, third left, and Juno Temple, right, pose at the premiere of "Afternoon Delight" during the 2013 Sundance Film Festival on Monday, Jan. 21, 2013 in Park City, Utah. (Photo by Danny Moloshok/Invision/AP)

  • Juno Temple

    Cast member Juno Temple poses at the premiere of "Afternoon Delight" during the 2013 Sundance Film Festival on Monday, Jan. 21, 2013 in Park City, Utah. (Photo by Danny Moloshok/Invision/AP)

  • Josh Radnor

    Actor Josh Radnor poses at the premiere of "Afternoon Delight" during the 2013 Sundance Film Festival on Monday, Jan. 21, 2013 in Park City, Utah. (Photo by Danny Moloshok/Invision/AP)

  • Dakota Fanning

    Dakota Fanning, a cast member in "Very Good Girls," turns back for photographers at the premiere of the film at the 2013 Sundance Film Festival, Tuesday, Jan. 22, 2013, in Park City, Utah. (Photo by Chris Pizzello/Invision/AP)

  • Dakota Fanning

    Dakota Fanning, a cast member in "Very Good Girls," poses at the premiere of the film at the 2013 Sundance Film Festival, Tuesday, Jan. 22, 2013, in Park City, Utah. (Photo by Chris Pizzello/Invision/AP)

  • Dakota Fanning

    Dakota Fanning, a cast member in "Very Good Girls," poses at the premiere of the film at the 2013 Sundance Film Festival, Tuesday, Jan. 22, 2013, in Park City, Utah. (Photo by Chris Pizzello/Invision/AP)

  • Jenny Lewis

    Singer Jenny Lewis, composer on the film "Very Good Girls," poses at the premiere of the film at the 2013 Sundance Film Festival, Tuesday, Jan. 22, 2013, in Park City, Utah. (Photo by Chris Pizzello/Invision/AP)

  • Kathryn Hahn, Juno Temple

    Cast members Kathryn Hahn, left, and Juno Temple, right, pose at the premiere of "Afternoon Delight" during the 2013 Sundance Film Festival on Monday, Jan. 21, 2013 in Park City, Utah. (Photo by Danny Moloshok/Invision/AP)

  • Amanda Seyfried, Juno Temple

    Cast members Amanda Seyfried, left, and Juno Temple, right, pose together at the premiere of "Lovelace" during the 2013 Sundance Film Festival on Tuesday, Jan. 22, 2013 in Park City, Utah. (Photo by Danny Moloshok/Invision/AP)

  • Amanda Seyfried

    Cast member Amanda Seyfried poses at the premiere of "Lovelace" during the 2013 Sundance Film Festival on Tuesday, Jan. 22, 2013 in Park City, Utah. (Photo by Danny Moloshok/Invision/AP)

  • Amanda Seyfried

    Cast member Amanda Seyfried poses at the premiere of "Lovelace" during the 2013 Sundance Film Festival on Tuesday, Jan. 22, 2013 in Park City, Utah. (Photo by Danny Moloshok/Invision/AP)

  • Amanda Seyfried

    Cast member Amanda Seyfried reacts to a photographer's request at the premiere of "Lovelace" during the 2013 Sundance Film Festival on Tuesday, Jan. 22, 2013 in Park City, Utah. (Photo by Danny Moloshok/Invision/AP)

  • Juno Temple

    British actress Juno Temple, a cast member in "Magic Magic," poses at the premiere of the film at the 2013 Sundance Film Festival, Tuesday, Jan. 22, 2013, in Park City, Utah. (Photo by Chris Pizzello/Invision/AP)

  • Catalina Sandino

    Mexican actress Catalina Sandino, a cast member in "Magic Magic," poses at the premiere of the film at the 2013 Sundance Film Festival, Tuesday, Jan. 22, 2013, in Park City, Utah. (Photo by Chris Pizzello/Invision/AP)

  • Emily Browning

    Australian actress Emily Browning, a cast member in "Magic Magic," poses for photographers at the premiere of the film at the 2013 Sundance Film Festival, Tuesday, Jan. 22, 2013, in Park City, Utah. (Photo by Chris Pizzello/Invision/AP)

  • Michael Cera

    Michael Cera, a cast member in "Magic Magic," poses at the premiere of the film at the 2013 Sundance Film Festival, Tuesday, Jan. 22, 2013, in Park City, Utah. (Photo by Chris Pizzello/Invision/AP)

  • Sebastian Silva, Agustin Silva, Michael Cera, Emily Browning, Catalina Sandino, Juno Temple

    Chilean director Sebastian Silva, second from left, writer/director of "Magic Magic," poses with cast members, from left, Michael Cera, Emily Browning, Agustin Silva, Catalina Sandino and Juno Temple at the premiere of the film at the 2013 Sundance Film Festival, Tuesday, Jan. 22, 2013, in Park City, Utah. (Photo by Chris Pizzello/Invision/AP)

  • Catalina Sandino, Juno Temple

    Colombian actress Catalina Sandino, left, and British actress Juno Temple, cast members in "Magic Magic," pose together at the premiere of the film at the 2013 Sundance Film Festival, Tuesday, Jan. 22, 2013, in Park City, Utah. (Photo by Chris Pizzello/Invision/AP)

  • Catalina Sandino, Michael Cera

    Colombian actress Catalina Sandino, left, and Michael Cera, cast members in "Magic Magic," pose together at the premiere of the film at the 2013 Sundance Film Festival, Tuesday, Jan. 22, 2013, in Park City, Utah. (Photo by Chris Pizzello/Invision/AP)

  • Catalina Sandino, Michael Cera

    Colombian actress Catalina Sandino, left, and Michael Cera, cast members in "Magic Magic," fall to the ground while posing for photographers at the premiere of the film at the 2013 Sundance Film Festival, Tuesday, Jan. 22, 2013, in Park City, Utah. (Photo by Chris Pizzello/Invision/AP)

  • Juno Temple

    British actress Juno Temple, a cast member in "Magic Magic," reacts to photographers at the premiere of the film at the 2013 Sundance Film Festival, Tuesday, Jan. 22, 2013, in Park City, Utah. (Photo by Chris Pizzello/Invision/AP)

  • Peter Sarsgaard

    Cast member Peter Sarsgaard poses at the premiere of "Lovelace" during the 2013 Sundance Film Festival on Tuesday, Jan. 22, 2013 in Park City, Utah. (Photo by Danny Moloshok/Invision/AP)

  • Juno Temple

    Cast member Juno Temple poses at the premiere of "Lovelace" during the 2013 Sundance Film Festival on Tuesday, Jan. 22, 2013 in Park City, Utah. (Photo by Danny Moloshok/Invision/AP)

  • Shia LaBeouf

    Cast member Shia LaBeouf poses at the premiere of "The Necessary Death of Charlie Countryman" during the 2013 Sundance Film Festival on Monday, Jan. 21, 2013 in Park City, Utah. (Photo by Danny Moloshok/Invision/AP)