Martin Marcantonio Luciano Scorsese is an American film director, screenwriter, producer, actor, and film historian, directing landmark films such as Taxi Driver, Raging Bull and Goodfellas. He won the Academy Award for Best Director for The Departed.
Stan convinces Martin Scorsese to quit drugs in "The Best Christmas Story Never". Without his 'inspiration', Stan has to take over filming Taxi Driver. When he criticizes Robert De Niro's acting. De Niro walks off the set leaving John Wayne to take the role of Travis Bickle.