The Hangover Part III

The Hangover Part III is a 2013 American comedy film co-produced and directed by Todd Phillips from a script he wrote with Craig Mazin. It is the sequel to The Hangover Part II (2011) and the final installment in The Hangover trilogy. The film stars Bradley Cooper, Ed Helms, Zach Galifianakis, Ken Jeong, Justin Bartha, Mike Epps, Sasha Barrese, Gillian Vigman, Mike Vallely, Grant Holmquist, Jamie Chung, Sondra Currie, Heather Graham, Jeffrey Tambor, and Phillips reprising their roles from the previous two installments joined by Melissa McCarthy and John Goodman. In the film, the "Wolfpack" (Phil, Stu, Doug, and Alan) seek help for Alan after his mental breakdown, only for things to go awry when an incident from the original film comes back to haunt them.

The Hangover Part III was announced days before the release of The Hangover Part II and Mazin, who co-wrote Part II, was brought on board. In January 2012, the principal actors re-signed to star. In March 2012, Warner Bros. Pictures announced a U.S. Memorial Weekend release. The supporting roles were cast between June and September 2012. Principal photography began in September 2012 in Los Angeles, California, before moving to Nogales, Arizona, and Las Vegas, Nevada, concluding that November.