We have the official trailer for Hangover Part II . The sequel to the wildly successful 2009 "The Hangover" will follow the gang, played by Bradley Cooper, Ed Helms, Zack Galifianakis and Justin Bartha, as they take a boys' trip to Thailand with a dangerous stop in Bangkok. Asian gangster Mr. Chow, played by Ken Jeong, will also return. The film will be released on May 26th. Watch the trailer after the Jump... The sequel to the wildly successful 2009 "The Hangover" will follow the gang, played by Bradley Cooper, Ed Helms, Zack Galifianakis and Justin Bartha, as they take a boys' trip to Thailand with a dangerous stop in Bangkok. Asian gangster Mr. Chow, played by Ken Jeong, will also return. Please Leave A Comment-