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 Part II from point A to point B [was] incredibly difficult and the bureaucracy and getting things done. There are always tons of people around the set and Todd loves a lean set and it was always the opposite, so watching a director deal with that—especially when it was Todd Phillips—was interesting." He then went on to say, in a later part of the interview, that "it was the hardest shoot that I had ever done, that Zach had ever done, that Ed had ever done and that Todd had ever done." In February 2011, it was reported that Christophe Beck would