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.
| Actor | Role |
|---|---|
 Todd PhillipsSelf | Self |
 Bradley CooperSelf | Self |
 Ed HelmsSelf | Self |
 Zach GalifianakisSelf | Self |
| DDaniel GoldbergSelf | Self |
 Jeremy GarelickSelf | Self |
 Sue KrollSelf | Self |
 Justin BarthaSelf | Self |
 Bill BrzeskiSelf | Self |
 Heather GrahamSelf | Self |
 Ken JeongSelf | Self |
| SScott BudnickSelf | Self |
 Mike TysonSelf | Self |
 Lawrence SherSelf | Self |
 Rob RiggleSelf | Self |
 Craig MazinSelf | Self |
 Paul GiamattiSelf | Self |
 Scot ArmstrongSelf | Self |
 John GoodmanSelf | Self |
| RRobert StaddSelf | Self |