Seth Rogan, right, cast member and executive producer of the new comedy film "Knocked Up" and fellow cast member Paul Rudd pose for photographers at the premiere of the film in Los Angeles Monday, May 21, 2007. The movie opens June 1.
Katherine Heigl, cast member of the new comdey film "Knocked Up," shows off her engagement ring from musician Josh Kelley at the premiere of the film in Los Angeles Monday, May 21, 2007.
Katherine Heigl cast member of the new comedy film "Knocked Up," poses with her fiance, musician Josh Kelley, at the premiere of the film in Los Angeles Monday, May 21, 2007.
Actress Kate Walsh, one of the stars of the television series "Grey's Anatomy," gets a kiss from her fiance, Alex Young, as they arrive as guests at the premiere of the new comedy film "Knocked Up" in Los Angeles Monday, May 21, 2007.
"Grey's Anatomy" star Katherine Heigl, a cast member of the new comdey film "Knocked Up, poses on the red carpet at the premiere of the film in Los Angeles Monday, May 21, 2007.
Actress Kate Walsh, one of the stars of the television series "Grey's Anatomy," and her fiance, Alex Young, pose on the red carpet at the premiere of the new comedy film "Knocked Up" in Los Angeles Monday, May 21, 2007.
Seth Rogan, right, cast member and executive producer of the new comedy film "Knocked Up," and fellow cast member Paul Rudd arrive at the premiere of the film in Los Angeles Monday, May 21, 2007.
Cast member Leslie Mann of the new comedy film "Knocked Up" poses during premiere of the film in Los Angeles Monday, May 21, 2007.
Katherine Heigl, cast member of the new comedy film "Knocked Up," is photographed at the premiere of the film in Los Angeles Monday, May 21, 2007.
Seth Rogan, right, cast member and executive producer of the new comedy film "Knocked Up," and fellow cast member Paul Rudd clown with the poster for the film showing Rogan as they arrive at the premiere in Los Angeles Monday, May 21, 2007.
Judd Apatow, director, writer and producer of the new comedy film "Knocked Up," poses with his family during the premiere of the film in Los Angeles Monday, May 21, 2007. With him is his wife and cast member Leslie Mann and daughters Maude, left, and Iris.