The Punch Scene

To me one of the scenes that crack me up is the one where Hume Cronyn punched the orderly, if only for the fact that I heard the background story. In his youth, Cronyn was a trained boxer. When the scene came up his old training kicked in and he actually knocked the actor who played the orderly down. Apparently the actor underestimated what that little old man could do and didn't roll with the blow.