The trailer for Martin Scorsese's "Shutter Island" is now online. "Shutter Island" stars Leonardo DiCaprio and Mark Ruffalo.

The film tells of the story of two U.S. marshals, Teddy Daniels (LDiCaprio) and Chuck Aule (Ruffalo), who are summoned to a remote and barren island off the coast of Massachusetts to investigate the mysterious disappearance of a murderess from the island’s fortress-like hospital for the criminally insane.

Click on the link below to head on over to Apple.com (http://www.apple.com) to check it out.