As soon as Universal Pictures won the motion-picture rights to the best-selling BDSM-themed trilogy "Fifty Shades Of Grey," Internet users began fantasy casting their favorite actors for the lead roles of dominant billionaire Christian Grey and virginal college student Anastasia Steele.

Since the trilogy evolved from "Twilight" fan fiction, Twihards naturally want to see Kristen Stewart and Robert Pattinson reprise their roles as Bella and Edward, but with whips, chains and no fangs.

Thankfully, the on- and off-screen couple haven't expressed an explicit interest in the film.

“I haven’t read the book yet -- so I don’t know,” Stewart told Celebuzz when asked if she could picture herself and Pattinson playing these roles, and it bodes well that she could barely get through a short passage from the book when asked to read it aloud for MTV's Josh Horowitz.

But given the book's amazing success, it's not surprising that there are more than a few actors in Hollywood ready to sign on to what could very well be the next "Twilight."

"Pretty Little Liars" star Ashley Benson is the latest celebrity to express an interest in the film. The 22-year-old, who has been trying to "break out of her good-girl mold," working on edgy films like "Spring Breakers," told Celebuzz she'd love to nab the role of Anastasia Steele.

“I’ve read every book. I want to play Anastasia,” Benson told the website.

Though the bubbly blonde doesn't quite match the book's description of Anastasia -- "a pale, brown haired girl with blue eyes too big for her face," -- she's still dead set on the role (she can dye her hair, after all), even though her fans have been aiming for her to be cast as Anastasia's best friend, Katherine Kavanagh.

"Kate is awesome. I like all the characters, but Anastasia? I love her so much!" she explained.

Likewise, "Vampire Diaries" star Ian Somerhalder also voiced a strong interest in playing the male lead. Last month, he told Ryan Seacrest he would "absolutely" be up for taking on the role of Christian Grey. "It could be very, very amazing. I have the book and I just started reading it. That would be a pretty incredible thing, and hopefully that could pan out," he said. "Beyond the shadow of a doubt, I think that would be a phenomenal opportunity!"

The sexiest vampire on "True Blood," Alexander Skarsgard, had never heard of the explosive, erotic series just a few weeks ago. But when he was asked if he would be interested in playing the copper-haired billionaire whose estate includes a "red room of pain," Skarsgard's interest was definitely piqued.

"Where do I sign? He's got a sex chamber? My character [Eric Northman] has that on ‘True Blood.' He's got his little dungeon. I was born to play that part," he told reporters at a press junket for his new movie "Battleship."

Other haven't been quite so enthusiastic, but admit it would be a hard role to turn down. "This Means War" star Chris Pine recently told "Access Hollywood," "It’d be a hell of a choice for me, I think it sounds like an interesting film.

And while Selena Gomez hasn't expressed interest in the part, some have wondered if her recent Funny of Die parody of the book, was in fact an audition tape of sorts.

Who should play Christian and Anastasia?

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  • Armie Hammer as Christian Grey

    Copper hair, strong build, steely gray eyes ... Armie Hammer would make the perfect Christian Grey. He's 25, just the right age to pull off 27-year-old Grey's air of success and boyish charm, and he can go from serious and sexy smirk in a second.<br /> <i> Backups: Ryan Gosling, Michael Fassbender, Chris Pine, Henry Cavill</i>

  • Elizabeth Olsen as Anastasia Steele

    Olsen breakout role in "Martha Marcy May Marlene" proved she can play frightened and confused like a pro. But it's her piercing blue eyes that seal the deal -- darken her hair a few shades, and she is not-so-innocent recent college grad Ana.<br /> <i>Backups: Dakota Fanning, Saoirse Ronan, Alexis Bledel, Emma Stone</i>

  • Evan Rachel Wood as Kate Kavanagh

    Ana's inquisitive roommate Kate has strawberry blonde hair and a fierce attitude. Wood often plays older than her 24 years, but would make a believable mature recent college grad with sex appeal. <br /><i>Backups: Carey Mulligan, Mia Wasikowska, Blake Lively, Ari Graynor</i>

  • Michael Trevino as Jose Rodriguez

    Young photographer and college student Jose adores Ana and desperately wants to be more than just friends, but the arrival of Christian Grey solidifies his place as a pal. "The Vampire Diaries'" Trevino has proven he can play tortured, and his good looks make him a nice threat for Mr. Grey. <br /><i> Backups: Taylor Lautner, Penn Badgley, Mark Salling</i>

  • Michael Keaton as Ray Steele

    Ana's stepdad Ray is ex-military and likes the simpler things in life, like baseball and fishing, but he's got a soft spot for his little girl. Ray's role isn't huge, but Keaton could easily pull off playing the reserved, protective pop. <br /><i> Backups: Ed Harris, Bryan Cranston, Jeffrey Dean Morgan</i>

  • Mary Steenburgen as Carla

    Ana's mom Carla is a hopeless romantic, but also fairly unlucky in love. Ray was her second husband who Ana stayed to live with when she ran off with #3. Now on #4, she's hoping her daughter won't make the same mistakes. <br /><i>Backups: Patricia Clarkson, Marcia Gay Harden, Teri Hatcher</i>

  • Jimmy Smits as Jose Rodriguez Sr.

    Jose's dad and Ana's dad Ray were old army buddies, reunited when their kids became friends at college. Jose Sr. also desperately wants Ana and his son to get together, and Smits can play convincing in his sleep. <br /><i> Backups: Danny Trejo, Edward James Olmos</i>

  • Susan Sullivan as Grace Trevelyan-Grey

    Christian's mother Grace -- a pediatrician who adopted him at the age of 4 -- is smart, sweet and very high society. Sullivan's poise would be perfect, but it's her ability to play sadness and fierce maternal instincts that would come in handy. <br /><i>Backups: Susan Sarandon, Joan Allen</i>

  • Stellan Skarsgard as Carrick Grey

    Carrick is a successful lawyer and businessman who makes his family's best interests a top priority. He's soft spoken, but still has presence -- Skarsgard's soulful eyes would definitely come in handy for the more emotional moments. <br /><i>Backups: Harrison Ford, Victor Garber</i>

  • James Franco as Elliot Grey

    Christian's older adopted brother, Elliot, is a good time guy and a real ladies man -- Franco could pull off both -- who's always giving his little brother a hard time for his single status ... until Christian meets Ana. <br /><i> Backups: James Marsden, Zach Gilford</i>

  • Lucy Hale as Mia Grey

    Christian's little sister Mia has always been the only woman who can give him a hard time and get away with it. Lucy Hale could play the energetic brunette in a second. <br /><i>Backups: Leighton Meester, Emmy Rossum, Nina Dobrev</i>

  • Christopher Meloni as Taylor

    Christian Grey's most trusted security man, Taylor is ex-FBI and the strong, silent type ... but he reserves a smile here and there for Ana. <br /><i>Backups: David Morse, Bruce Willis</i>

  • Helen Mirren as Mrs. Jones

    Christian's housekeeper Mrs. Jones is also a mother figure of sorts, keeping his swanky penthouse home tidy, cooking all meals and keeping the refrigerator stocked with his favorites. <br /><i>Backups: Cybill Shepherd, Jane Seymour, Julie Andrews

  • Sharon Stone as Elena

    Christian's Mrs. Robinson -- the woman who welcomed him into the kinky world of BDSM at a very young age -- needs to be a predator, but still sexy in her older age. Sharon Stone fits the bill. <br /><i>Backups: Ellen Barkin, Meg Ryan, Morgan Fairchild

  • Colin Firth as Dr. Flynn

    Dr. Flynn is the voice of reason in Christian's life, and they have more than just a therapist-patient relationship. Flynn is a confidant and charming in his own right. <br /><i>Backups: Clive Owen, Ralph Fiennes, Guy Pearce, Robert Downey Jr.</i>

  • <em>Next: James Franco And Seth Rogen In Vancouver</em>

  • James Franco And Seth Rogen Film In Vancouver

    James Franco and Seth Rogen's new movie 'The Interview' is being filmed in Vancouver.

  • James Franco And Seth Rogen Film In Vancouver

    James Franco and Seth Rogen's new movie 'The Interview' is being filmed in Vancouver.

  • James Franco And Seth Rogen Film In Vancouver

    James Franco and Seth Rogen's new movie 'The Interview' is being filmed in Vancouver.

  • James Franco And Seth Rogen Film In Vancouver

    James Franco and Seth Rogen's new movie 'The Interview' is being filmed in Vancouver.

  • James Franco And Seth Rogen Film In Vancouver

    James Franco and Seth Rogen's new movie 'The Interview' is being filmed in Vancouver.

  • James Franco And Seth Rogen Film In Vancouver

    James Franco and Seth Rogen's new movie 'The Interview' is being filmed in Vancouver.

  • James Franco And Seth Rogen Film In Vancouver

    James Franco and Seth Rogen's new movie 'The Interview' is being filmed in Vancouver.

  • James Franco And Seth Rogen Film In Vancouver

    James Franco and Seth Rogen's new movie 'The Interview' is being filmed in Vancouver.

  • James Franco And Seth Rogen Film In Vancouver

    James Franco and Seth Rogen's new movie 'The Interview' is being filmed in Vancouver.

  • James Franco And Seth Rogen Film In Vancouver

    James Franco and Seth Rogen's new movie 'The Interview' is being filmed in Vancouver.

  • James Franco And Seth Rogen Film In Vancouver

    James Franco and Seth Rogen's new movie 'The Interview' is being filmed in Vancouver.

  • James Franco And Seth Rogen Film In Vancouver

    James Franco and Seth Rogen's new movie 'The Interview' is being filmed in Vancouver.

  • <em>Up Next: 35 Things James Franco Has Done</em>

  • 1992-1996 (High school)

    As a teenager, Franco fell in to a crowd that stole designer fragrances and sold them to their classmates. "In my first two years of high school, I got into a lot of trouble with the police for minor things: graffiti, stealing, crashing cars," <a href="http://www.guardian.co.uk/film/2009/jan/24/james-franco-interview-milk" target="_blank">he revealed to The Guardian</a>. "It was teen angst. I was uncomfortable in my own skin. I was shy. I changed my ways just in time to get good grades."

  • 1997

    After dropping out of UCLA, Franco worked the late shift at McDonald's to support himself while trying to become an actor. "I was vegetarian until [then]," he said.

  • 2001

    For his role in the TNT biopic "James Dean," Franco started smoking two packs of cigarettes a day. He was not a smoker previously and has since quit.

  • 2002

    To prepare for his role as a drug addict in "City by the Sea," Franco reportedly lived on the streets for several days.

  • 2002

    Franco shadowed a male prostitue to prepare for his role in "Sonny," directed by Nicolas Cage.

  • 2005

    Along with Merriwether Williams, a former writer and executive for Nickelodeon, he co-wrote "The Ape," a movie about a writer who lives with a talking gorilla. (It is not a children's movie.)

  • 2006

    To prepare for his role in "Tristan & Isolde," Franco trained in sword fighting and horseback riding.

  • 2006

    In order to take the lead role as an aviator in the World War I movie "Flyboys," Franco had to obtain a pilot's license.

  • 2006

    Franco re-enrolled at UCLA as a creative writing major, completing his degree in 2008 after taking an accelerated course load while continuing to act.

  • 2007

    He and Mila Kunis spoofed "The Hills."

  • 2008

    He moved to New York to simultaneously attend Columbia University's MFA writing program, NYU's Tisch School of the Arts for filmmaking and Brooklyn College for fiction writing.

  • 2008

    He sometimes gives acting lessons -- or something like that.

  • 2008

    High Times magazine named him Stoner of the Year after starring in "Pineapple Express," even though he's said he no longer smokes marijuana. He revealed that his first time getting high was before an eighth-grade dance.

  • June 2009

    After a scheduling conflict <a href="http://news-briefs.ew.com/2009/06/04/james-franco-drops-out-of-ucla-graduation-speech/" target="_blank">prompted him to cancel</a> his delivery of UCLA's commencement speech one week before the ceremony, Franco created a video spoofing the situation.

  • November 2009

    He joined the cast of "General Hospital" in the recurring role of Franco, a mystery artist who comes to Port Charles and becomes intertwined with many other residents in town.

  • December 2009

    He penned a <a href="http://online.wsj.com/article/SB10001424052748704107104574570313372878136.html" target="_blank">Wall Street Journal essay</a> about why his "General Hospital" role constitutes performance art.

  • 2010

    While completing an MFA at New York University, Franco received a "D" in a Directing the Actor class for missing 12 of the 14 sessions because he was away filming "127 Hours."

  • 2010

    He then enrolled in Yale's Ph.D. program in English and the Rhode Island School of Design's digital-media master's program.

  • 2010

    Sometimes he refers to himself in the third person. "He's turned his celebrity into a form of performance art," <a href="http://www.telegraph.co.uk/culture/film/starsandstories/8209459/A-class-apart-interview-with-James-Franco.html" target="_blank">"127 Hours" director Danny Boyle told The Telegraph</a>. "While we were shooting the film, he would sometimes ask me, 'What do you want him to do?' I would say, What do you mean? He would say, 'What do you want from him in this scene?' You mean your character? 'No, no. Franco. What do you want from Franco?' He was talking about himself in the third person. I said, Well, I think he should be more emotional. And he said, 'Oh, I can get him to do that.' And then he'd do the scene and he'd be amazing. He turned on this extraordinary performance. He really does hold himself like a tool, to be used by the director for the benefit of the story."

  • October 2010

    He wrote a collection of short stories, "Palo Alto," named after the California city where he grew up.

  • October 2010

    <a href="http://www.huffingtonpost.com/2010/10/05/james-franco-in-drag-for-_n_751971.html" target="_blank">This</a>.

  • December 2010

    He introduced his precious Grandma Mitzie to the world.

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