The Hangover Part III is a 2013 American comedy film produced by Legendary Pictures and distributed by Warner Bros. Pictures. It is the third and final installment in The Hangover trilogy. The film stars Bradley Cooper, Ed Helms, Zach Galifianakis, Justin Bartha, and Ken Jeong. The supporting cast includes Jeffrey Tambor, Heather Graham, Mike Epps, Melissa McCarthy and John Goodman with Todd Phillips directing a screenplay written by himself and Craig Mazin. The film follows the “Wolfpack” (Phil, Stu, Doug, and Alan) as they try to get Alan the help he needs after facing a personal crisis. However, things go awry when an incident from the original film comes back to haunt them.