It seems like everybody loves Hollywood good-guy George Clooney…with the exception of his Three Kings director, David O. Russell. Back in 1998, when the movie was shooting, Clooney didn't yet have the clout to lord over a director, but he still stuck up for crew members when he felt Russell was being rude—often yelling at them to "hurry up," for example. When Russell started pushing around an extra (while directing a scuffle sequence) Clooney'd had enough. He got in Russell's face, Russell head-butted Clooney, and Clooney wrapped his hands around Russell's neck. They were quickly separated, and the movie wrapped shooting in a few days. They haven't worked together since.