These outtakes from I Heart Huckabees -- one of my favorite movies of all time, really -- are amusing and disturbing. Watch Lily Tomlin and notoriously tempermental director David O. Russell go at it. He really loses his shit at one point, telling Lily to "go fuck yourself," she brilliantly replies, "Why don't you go fuck your whole movie, 'cause that's what you're doing."
Note the crew-member recoiling in horror by the door on the right. LOL