The premise — crazy Vegas bachelor party they can’t remember and a groom missing — makes you think you’re in for a turd of a movie. But The Hangover ($16-$20) turned out to be one of the funniest of the year thanks to Zach Galifianakis, Ed Helm and Old School director Todd Phillips. The special edition includes both the theatrical version and an unrated version of the film, as well as extras like more pictures from the missing camera.