Sacha Baron Cohen is at it again. The British comedian is infamous for taking his uninhibited alter egos off of the big screen and letting them run loose in public. His latest stunt just happened at the opening of the 65th Annual Cannes Film Festival. Cohen arrived via yacht in character as Admiral General Aladeen from his new movie "The Dictator” -- which opens today -- with supermodel (and former George Clooney flame) Elisabetta Canalis in tow. Things started off chummy between the two, with him rubbing suntan lotion on her, but then it took a turn. Click ahead to see what happened at Cannes and some of Cohen's other wild publicity stunts.