The Hangover 
The Hangover casts Ed Helms, Bradley Cooper and Zach Galifianakis as a trio of groomsmen who wake up in Las Vegas to discover they have quite definitively lost control of their bachelor party. They can't seem to remember anything about the last 12 hours, their hotel suite is a disaster area, and the groom is missing. Retracing their steps just leads to more chaos. Throw in cameos by Ken Jeong, Heather Graham and Iron Mike Tyson and there's simply a lot to absorb and appreciate in the film. Director Todd Phillips (Old School) equips the perfect cast with excellent writing, crafting an utterly entertaining caper with a twist. The Hangover is a quick but well-paced comedy destined to bowl over audiences.
