Rumer Willis, right, her mother, Demi Moore, center, and Ashton Kutcher pose together at the premiere of "The House Bunny" in Los Angeles on Wednesday, Aug. 20, 2008. Rumer is in the cast.
Bruce Willis poses with fans at the premiere of "The House Bunny" in Los Angeles on Wednesday, Aug. 20, 2008.
From left, Ashton Kutcher, Demi Moore, Micah Alberti, Rumer Willis, Emma Heming, Bruce Willis, Tallulah Belle Willis, unidentifeid guest, and Scout Willis pose together at the premiere of "The House Bunny" in Los Angeles on Wednesday, Aug. 20, 2008.
Rumer Willis, left, and her mother, Demi Moore, embrace at the premiere of Willis' movie, "The House Bunny" in Los Angeles on Wednesday, Aug. 20, 2008.
Ashton Kutcher, left, and Demi Moore arrive at the premiere of "The House Bunny" in Los Angeles on Wednesday, Aug. 20, 2008.
From left, Holly Madison, Hugh Hefner, Bridget Marquardt, and Kendra Wilkinson arrive at the premiere of "The House Bunny" in Los Angeles on Wednesday, Aug. 20, 2008.
Bruce Willis, left, and Emma Heming arrive at the premiere of "The House Bunny" in Los Angeles on Wednesday, Aug. 20, 2008.
Khloe Kardashian arrives at the premiere of "The House Bunny" in Los Angeles on Wednesday, Aug. 20, 2008.
Cast member Colin Hanks arrives at the premiere of "The House Bunny" in Los Angeles on Wednesday, Aug. 20, 2008.
Cast members Rumer Willis, left, and Katharine McPhee pose together at the premiere of "The House Bunny" in Los Angeles on Wednesday, Aug. 20, 2008.
Cast member Rumer Willis arrives at the premiere of "The House Bunny" in Los Angeles on Wednesday, Aug. 20, 2008. The films opens Aug. 22.
Anna Faris arrives at the premiere of "The House Bunny" in Los Angeles on Wednesday, Aug. 20, 2008. Faris produced and stars in the film about a former Playboy model who gets kicked out of the mansion and discovers a new home among a group of socially awkward sorority girls.
Cast member Kat Dennings arrives at the premiere of "The House Bunny" in Los Angeles on Wednesday, Aug. 20, 2008.
Ashley Tisdale arrives at the premiere of "The House Bunny" in Los Angeles on Wednesday, Aug. 20, 2008.
Cast member Anna Faris arrives at the premiere of "The House Bunny" in Los Angeles on Wednesday, Aug. 20, 2008. Faris stars as Shelley, a perky Playboy bunny who gets kicked out of Hef's mansion and becomes the house mother for Zeta Alpha Zeta, a sorority full of misfits.
Cast member Emma Stone arrives at the premiere of "The House Bunny" in Los Angeles on Wednesday, Aug. 20, 2008. Stone plays the sorority's brainy leader, with Kat Dennings, Rumer Willis and "American Idol" runner-up Katharine McPhee playing some of the sisters.
Cast member and "American Idol" alum Katharine McPhee arrives at the premiere of "The House Bunny" in Los Angeles on Wednesday, Aug. 20, 2008.
Hugh Hefner arrives at the premiere of "The House Bunny" in Los Angeles on Wednesday, Aug. 20, 2008.