The Hangover Part II is a 2011 American comedy film and sequel to 2009's The Hangover. The film stars Bradley Cooper, Ed Helms, and Zach Galifianakis. Todd Phillips directed a script written by him, Craig Mazin and Scot Armstrong.
The film was produced by Legendary Pictures and distributed by Warner Bros. Pictures. Production began in October 2010 and the film was released in the United States on May 26, 2011.