The Hangover Part II, the follow-up film from 2009’s hit The Hangover, follows Phil, Stu, Alan, and Doug to Bangkok for Stu’s wedding. This is the first official trailer for the film, which is due out May 26. It stars Bradley Cooper, Zach Galifianakis, Ed Helms, and Justin Bartha as the “wolf pack,” along with Juliette Lewis, Ken Jeong, and Liam Neeson, with appearances by Mike Tyson and Former President Bill Clinton.