Boys will be boys. What happens in Vegas stays in Vegas. These are two of the themes running through The Hangover - an absolute joy of a movie that I just returned from seeing. Oh My God! I never laughed out loud so much in my life in a theater! By the time this flick was over we (the audience) were like a family. The Hangover is a buddy adventure film filled with goofs, slapstick while at the same time proves to be is a very smart funny film. Man, are we glad to be in on the fun! The …