Nick Offerman and Megan Mullally are out to prove that the couple that works together, stays together.
Offerman, 42, and Mullally, 54, met in 2000 while rehearsing a play and are currently costarring in the film "The Kings of Summer" and the play "Annapurna," they told Buzzfeed Tuesday. Offerman said he's always considered himself Mullally's "student."
"She’s often been a hero to me, and so getting to work with her as a peer in any way is like -- I feel like Luke Skywalker getting to go into lightsaber battle standing next to Obi-Wan Kenobi. I’m like, 'Alright, me and you. Let’s take ‘em on,'" Offerman said. "I have the best seat in the house in our play, to watch Megan, and she’s amazing."
In fact, when the two work together, Offerman said they're "like the Wonder Twins."
"We do things well on our own, but when we combine our powers, we can save the planet," he said.
Offerman and Mullally married in a surprise ceremony the day before the Emmy Awards in 2003. They've also costarred on "Will & Grace," "Parks and Recreation" and "Children's Hospital."
In 2010, Offerman told New York magazine that they made a deal to discuss any job that would keep them apart for more than a couple of weeks.
Click through the slideshow below to see which other celebrity couples met on set.
Will Smith and Jada Pinkett first met in 1990 when the actress auditioned for the role of Smith's girlfriend on the TV show, "The Fresh Prince." The couple married in 1997.
Actress Katherine Heigl and singer-songwriter Josh Kelley met on a video shoot for his song "Only You" in 2005 (in the video, Heigl plays Kelley's girl-next-door love interest.) The couple tied the knot in December 2007.
Sarah Michelle Gellar and Freddie Prinze Jr. first met on the set of the 1997 movie "I Know What You Did Last Summer," but didn't start dating until three years later. The couple tied the knot in Mexico in 2002.
Kelly Ripa and Mark Consuelos met on the "All My Children" set in 1995 -- when Consuelos was hired to play her onscreen lover Mateo Santos. The couple secretly dated for a year before they eloped in Las Vegas in 1996.
Celeb couple Ben Affleck and Jennifer Garner first met while filming the 2003 comic-book movie "Daredevil." The pair began dating in the summer of 2004 and were married in 2005.
Daniel Craig and Rachel Weisz had known each other for several years, but it wasn't until the pair worked on the movie "The Dream House" (playing husband and wife) that they were rumored to become involved romantically. The couple had a quiet courtship before marrying secretly in 2011. The wedding took place in front of just four guests in New York -- Daniel's daughter, son and two friends.
Natalie Portman met New York City Ballet dancer and choreographer Benjamin Millepied on the set of 2010's "Black Swan." The couple announced that they were engaged and expecting their first child in December 2010.
Halle Berry and Olivier Martinez met while filming 2012's "Dark Tide," in mid-2010. Berry and the French actor went public as a couple in October 2010, and became engaged over the holidays in 2011.