This is the entire epic toast from the 2009 movie The Hangover in which Zach Galafianakis's Alan character forms the Wolfpack in Las Vegas. It made our list of the Most Memorable Movie Moments of 2009 for a reason.
Starring in the clip are Bradley Cooper, Justin Bartha, Ed Helms, Zach Galifianakis.
The Hangover Wolfpack clip is made available by Warner Bros. Pictures. The film was originally released on June 5, 2009.