Hard-R hilarity occurs, and it is not necessary to see the red band trailer that is in the abundance of gross-out gags. Just look at the people involved in "The change of speed," even beyond reliable and fun Reynolds Bateman, the film comes from "Wedding Crashers" director David Dobkin and "The Hangover" screenwriters Jon Lucas and Scott Moore. Add to that Bateman and Reynolds are doing their best imitation of others and is quite safe to say that we have a winner on our hands. A winner dirty, sad, of course, but a winner anyway.