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OTRC: Leslie Mann and Paul Rudd talk 'This is 40,' filming awkward scenes (Video)

Paul Rudd and Leslie Mann talk to OTRC.com about their 2012 comedy film, 'This is 40,' which hits theaters Dec. 21, 2012. (OTRC)

Leslie Mann and Paul Rudd are set to once again grace the big screen as husband and wife in Judd Apatow's comedy "This is 40," and Mann explains why their dynamic in the film is relatable to audiences everywhere.

"It seems like...what's wrong in a marriage is funnier than what's going well in a marriage," Mann explained to OTRC.com on December 11. "The farther you take it, the more honest you are - it just makes it that much better and funnier, I think."

Rudd, 43, and Mann, 40, are set to reprise their "Knocked Up" roles as Pete and Debbie in the film that explores the trials and tribulations of marriage. The film, which is dubbed the "sort-of sequel to 'Knocked Up,'" also stars Megan Fox and Jason Segel.

Mann, who played the older sister to Katherine Heigl's character in the 2005 pregnancy comedy, explained why she felt it necessary to voluntarily go topless in one scene.

"I did [volunteer]," Mann said. "Well I didn't ask, I thought that it was important to the scene to be as vulnerable as possible, and I felt like having half of one boob out would make her more vulnerable...It was my idea."

Rudd and Mann star in the film which features a number of awkward scenes, including one when Rudd asks his on-screen wife to screen him for hemorrhoids in their home. The pair agree that the safe and familiar environment that they worked in contributed to their overall sense of trust.

"Yes. It is true," Rudd explained. "They are pretty vulnerable moments, and you want to be able to trust whoever is in charge, and the feeling - you know a lot of the crew, we worked with on 'Knocked Up' and 'The 40-year-old Virgin,' I mean there really is this sense that, there are friendships that have formed - you know they've lasted for years, it does make it easy to shoot those scenes."

Mann also caught up with OTRC.com at the film's Los Angeles premiere, and gushed about her own experience turning 40 this year.

"I was kind of nervous about turning 40, but it seems like it's working out," Mann told OTRC.com on December 17. "It's okay, I feel pretty good about it - but it depends on the day. Some days I'm not feeling as good about it, like when I see little gray hairs here and there, but for the most part, pretty good."

Watch the trailer for "This is 40" below. The movie hits theaters on December 21.

Reporting by George Pennacchio of KABC Television, parent company of the entertainment show "On The Red Carpet" (check for local TV listings).

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