Wolfpack Only: The Hangover Retrospective (2013)
Wolfpack Only: The Hangover Retrospective is a 2013 documentary movie directed by Joseph Garner, with a running time of 1h 12m. It stars Todd Phillips, Bradley Cooper and Ed Helms.
A documentary that explores the making of The Hangover Trilogy. It includes Zach's unlikely audition as "Alan," the truth behind Ed Helms missing tooth, the casting of a drug-dealing monkey and the wildly improbable rendezvous with a former president.