The Hangover

Ed Helms and Heather Graham in a still from the Hollywood movie 'The Hangover'.

(L-R) Zach Galifianakis, Bradley Cooper and Ed Helms in a still from the Hollywood movie 'The Hangover'.

(L-R) Bradley Cooper, Zach Galifianakis and Ed Helms in a still from the Hollywood movie 'The Hangover'.

(L-R) Zach Galifianakis, Ed Helms and Bradley Cooper in a still from the Hollywood movie 'The Hangover'.

A still from the Hollywood movie 'The Hangover'.

(L-R) Bradley Cooper, Zach Galifianakis, Ed Helms and Justin Bartha in a still from the Hollywood movie 'The Hangover'.

Heather Graham in a still from the Hollywood movie 'The Hangover'.

(L-R) Zach Galifianakis, Bradley Cooper, Ed Helms and Justin Bartha in a still from the Hollywood movie 'The Hangover'.

Ed Helms in a still from the Hollywood movie 'The Hangover'.

Bradley Cooper in a still from the Hollywood movie 'The Hangover'.

Sasha Barrese in a still from the Hollywood movie 'The Hangover'.

(L-R) Ed Helms, Zach Galifianakis and Bradley Cooper in a still from the Hollywood movie 'The Hangover'.

Ed Helms in a still from the Hollywood movie 'The Hangover'.

(L-R) Zach Galifianakis, Bradley Cooper and Ed Helms in a still from the Hollywood movie 'The Hangover'.

Ed Helms in a still from the Hollywood movie 'The Hangover'.

(L-R) Bradley Cooper, Zach Galifianakis and Ed Helms in a still from the Hollywood movie 'The Hangover'.

Mike Tyson in a still from the Hollywood movie 'The Hangover'.

(L-R) Ed Helms, Zach Galifianakis, Mike Tyson and Bradley Cooper in a still from the Hollywood movie 'The Hangover'.

(L-R) Jeffrey Tambor, Sasha Barrese and Sondra Currie in a still from the Hollywood movie 'The Hangover'.

(L-R) Zach Galifianakis, Ed Helms and Bradley Cooper in a still from the Hollywood movie 'The Hangover'.

Ken Jeong (C) in a still from the Hollywood movie 'The Hangover'.

(L-R) Ed Helms, Zach Galifianakis and Bradley Cooper in a still from the Hollywood movie 'The Hangover'.

(L-R) Zach Galifianakis, Bradley Cooper, Ed Helms and Justin Bartha in a still from the Hollywood movie 'The Hangover'.

Zach Galifianakis in a still from the Hollywood movie 'The Hangover'.

Zach Galifianakis and Bradley Cooper in a still from the Hollywood movie 'The Hangover'.

Justin Bartha in a still from the Hollywood movie 'The Hangover'.

Ed Helms and Heather Graham in a still from the Hollywood movie 'The Hangover'.

Bradley Cooper in a still from the Hollywood movie 'The Hangover'.

(L-R) Zach Galifianakis, Bradley Cooper and Ed Helms in a still from the Hollywood movie 'The Hangover'.

(L-R) Ed Helms and Bradley Cooper in a still from the Hollywood movie 'The Hangover'.

(L-R) Ed Helms, Bradley Cooper and Zach Galifianakis in a still from the Hollywood movie 'The Hangover'.

(L-R) Zach Galifianakis, Ed Helms, Justin Bartha and Bradley Cooper in a still from the Hollywood movie 'The Hangover'.