Wolfpack Only: The Hangover Retrospective

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.

Top Cast

Todd PhillipsSelf

Bradley CooperSelf

Ed HelmsSelf

Zach GalifianakisSelf

Daniel GoldbergSelf

Jeremy GarelickSelf

Sue KrollSelf

Justin BarthaSelf