The Hangover Part II an exotic location. That's all I know". In January 2010, Phillips dismissed rumors that Zac Efron would join the cast of "The Hangover 2", though Ed Helms stated that Efron would be a welcomed addition, commenting, "I love that guy. He's actually really funny". In March 2010, Phillips denied reports that the film would take place in Mexico or Thailand stating, "I don't know. There's a lot of rumors. There was rumor also that it was going to Mexico or something and neither are true". Also by March, Galifianakis, Helms, Bradley Cooper, and Justin Bartha completed negotiations and signed deals
The Hangover director, appears as Mr. Creepy, who appears briefly in an elevator. Mike Tyson appears as himself; Tyson originally refused to appear in the film, but he changed his mind when he found out that Todd Phillips directed "Old School", which Tyson liked. Tyson later said that working on the film convinced him to change his lifestyle. Professional skateboarder Mike Vallely portrays Neeco, the high-speed tuxedo delivery man. Las Vegas personalities Wayne Newton and Carrot Top appear as themselves in the photo slide show. The plot of "The Hangover" was inspired by a real event that happened to Tripp Vinson, a