The Hangover frachisee has kicked off their final and the ultimate part III version today. The Hangover III was loads of reason to tickle your funny bone unlike the 2011's dull hit. The movie stars Bradley Cooper, Justin Bartha, Ed Helms and the most funny Zach Galifianakis along with Heather Graham. Here's the exclusive Lehren review of Hangover III. Check it out.