Two days before his wedding, Doug (Justin Bartha) and three friends (Bradley Cooper, Ed Helms, Zach Galifianakis) drive to Las Vegas for a wild and memorable stag party. In fact, when the three groomsmen wake up the next morning, they can't remember a thing; nor can they find Doug. With little time to spare, the three hazy pals try to re-trace their steps and find Doug so they can get him back to Los Angeles in time to walk down the aisle.
In real life, Mike Tyson owns seven tigers.
Written by Jon Lucas and Scott Moore
