- Cast: Bradley Cooper, Ed Helms, Zach Galifianakis, Justin Bartha, Ken Jeong, Heather Graham, Jeffrey Tambor, Gillian Vigman, Sasha Barrese, Jamie Chung, John Goodman, Melissa McCarthy, Mike Epps, Sondra Currie, Mike Vallely, Grant Holmquist, Oscar Torre, Jonny Coyne, Betty Murphy, Lela Loren, Harrison Forsyth, Roger Schueller, Zoe Aggeliki, Zuhair Haddad, Casey Jones, Tarah McDaniel, Dave Weasel
- Director: Todd Phillips
- Writers: Craig Mazin, Todd Phillips
- Producers: Daniel Goldberg, Todd Phillips
- Co Producers: David Siegel, Jeffrey Wetzel
- Associate Producer: Joseph Garner
- Executive Producers: Scott Budnick, J.C. Spink, Thomas Tull
- Casting: Mindy Marin
- Costume Design: Louise Mingenbach
- D.O.P.: Lawrence Sher
- Editors: Jeff Groth, Debra Neil-Fisher
- Makeup: Keith Sayer
- Production Design: Maher Ahmad
In the aftermath of the death of Alan's father, the wolfpack decide to take Alan to get treated for his mental issues. But things start to go wrong on the way to the hospital as the wolfpack is assaulted and Doug is kidnapped. Now they must find Mr. Chow again in order to surrender him to the gangster who kidnapped Doug in order to save him.
- Aspect Ratio: 2.35:1
- Filming Locations: Las Vegas, USA; Los Angeles, USA
- MPAA Warning: Pervasive language including sexual references, some violence and drug content, and brief graphic nudity
- Production Companies: Green Hat Films, Legendary Pictures
- Production Schedule: September 2012
2013 Guide Analysis: "Coming out of nowhere, 2009's "The Hangover" proved an R-rated comedy smash hit that grossed nearly half a billion dollars worldwide. This is especially rare for an American comedy, a genre that often has great difficulties in international markets. A Thailand-set sequel was quickly cobbled together and hit cinemas in May 2011 with a wet thud. Though it earned slightly more than its predecessor, both critical reviews and audience polls showed widespread disappointment with a film that essentially played like a poor man's clone of the first one - albeit in a different setting.
Talk about a third film began just before the second opened, and director Todd Phillips said that the film wouldn't be another sequel so much as a wrapping up of a trilogy. He also seemed very aware of the key complaint with the second one and its copying of the first film's template - "The third would be very much a finale and an ending … it is not following that [the first film's] template, but is very much a new idea." While the second film took a while to get into production due to drawn out negotiations, this third one came together super quick.
The cast returns to Las Vegas for much of the film, with shooting also taking place in Los Angeles and Arizona (which is doubling for Tijuana). Several of the smaller side characters from the first film are also back including Heather Graham's Jade and Mike Epps' Black Doug. John Goodman and Melissa McCarthy also pop up in small roles.
Not much is known about the story, aside from there being no wedding element this time around - rather it is more of a road trip. One subplot involves breaking out Zach Galifianakis' Alan from a psychiatric ward, the character having gone through a crisis after a death. Also, something from the first movie comes back to haunt them - which probably explains the return to Vegas. We should know more shortly."