No one was as mach an actors director a he was. The many layers of the dialogues an situation that he achive on his "improv/shooting" are as real as the human being that we can see in all his characters and scenes. There's nothing more real print on celluloid than a Cassavete's film, unless is a documentary. REJECT REALLITY TV CRAP, SUPPORT CASSAVETE'S FILMS.
PS: For actors and directors is a school riped on a digital video disc (critterion, of course)