So, we are in the hospital. Al Pacino (Michael) is about to drive the bed, on which Brando was "sleeping", from one room to some kind of storage room. While pulling the bed through the storage room's doors, (it's not really noticable in divx movie version) but Brando's arm is hanging off of the bed, and in one moment he fastly puts the arm on himself. When watching carefully, it can be seen that he bumps really bad on door frame. Also you can see Pacino's painfull smile by the infusion. Then the scene ends.