Iron Man

Jeff Chandler trained as a boxer to play the role. "It's my chance to step right up there in a class with Kirk Douglas and Bob [Robert] Ryan", said Chandler. "And that's pretty fast company."

In a fight in a hotel room, one character picks up a metal ash tray stand and bashes another character over the head. In the next scene, the person bashed is up and about and shows no ill effects. In the real world that blow would have killed him.