What was supposed to be a simple Las Vegas bachelor party snowballs into a gruesome comedy of errors in director Peter Berg’s darkly funny tale of murder, mayhem, and betrayal. When a call girl is accidentally killed and the revelers try to cover up the death, it doesn’t take long before longtime friends are resorting to all manner of despicable tactics in order to avoid getting caught. Christian Slater, Jon Favreau, Cameron Diaz, Daniel Stern, Jeremy Piven star. 100 min. Standard and Widescreen (Enhanced); Soundtracks: English Dolby Digital 5.1, Dolby Digital stereo, French Dolby Digital 5.1; biographies; theatrical trailer.