George Clooney was in a joking mood Saturday as he greeted fellow passengers and smiled his way through security departing out of LAX. His Up in the Air character Ryan Bingham would approve of those slip-on shoes. He was on the mainland for a short stop, showing off a fresh tan from filming The Descendants in Hawaii. It hasn't been all work on the Islands, as his girlfriend, Elisabetta Canalis, visited and showed off lots of skin in her miniscule bikini during downtime. We won't see him sporting that luau-ready shirt on the big screen until next year, but his action-packed thriller The American is set for release this Fall.