I believe that the Jokers who appeared in Batman movies relied heavenly on the performance invented by Brando in this movie. He sets the rules for this kind of killers. Since 1970 Brando did not perform in a movie unless he wanted to break a new method of acting. He is experimenting and the new actors were lucky to find all the rules and codes that Brando come up with ready and clean. Strange enough, Critics praise the new actors while back lashing The Great Brando forever..