Leonardo DiCaprio and Martin Scorsese discuss the darkness behind SHUTTER ISLAND, the duo's highest grossing debut at the box office.br br SHUTTER ISLAND stars Leonardo DiCaprio as U.S. Marshal Teddy Daniels who investigates the disappearance of a murderess who escaped from a hospital for the criminally insane and is presumed to be hiding on the remote Shutter Island.br br Directed by Martin Scorcesebr br Starring Leonardo DiCaprio, Mark Ruffalo, Ben Kingsley, Max von Sydow, and Michelle Williams.