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 to the audience's capacity for raunchiness. It gets laughs, but some of them are in disbelief". Conversely, Michael Rechtshaffen of "The Hollywood Reporter" gave "The Hangover Part II" a positive review remarking, "What happens in Bangkok isn't as much fun as when it happened in Vegas, but it's still worth the trip". Lou Lumenick of the "New York Post" said, "There are definitely laughs to be had, even if the three leads often seem to be going through the motions". Crystal, a capuchin monkey who also appeared in the "Night at the Museum" films, portrays the drug-dealing monkey. Director Todd