The Hangover Part II is a 2011 American comedy film produced by Legendary Pictures and distributed by Warner Bros. Pictures. It is the sequel to 2009's The Hangover and the second film in The Hangover trilogy. Todd Phillips directed the film in addition to co-authoring the script with Craig Mazin, and Scot Armstrong. The film stars Bradley Cooper, Ed Helms, Zach Galifianakis, Ken Jeong, Jeffrey Tambor, Justin Bartha and Paul Giamatti. It tells the story of Phil, Stu, Alan, and Doug as they travel to Thailand for Stu's wedding. After the bachelor party in Las Vegas, Stu takes no chances and opts for a safe, subdued pre-wedding brunch. Things do not go as planned, resulting in another bad hangover with no memories of the previous night.