What better way to say goodbye to the Hangover franchise than taking a road trip to Las Vegas where all the shenanigans began? Remember how that first side-splittingly funny 2009 movie took us all by surprise? Then the 2nd one maybe not so much, and the 3rd - not as funny as the first one but way way better than the second. But still who cares? What we care about is those guys: Zach Galifianakis, Ed Helms and Bradley Cooper. OK yeah, and Justin Bartha and the incomparable Ken Jeong.