7 Obvious Spoilers You Missed At The Start Of Movies
7. Shutter Island: Chuck Struggles With His Gun
Shutter Island cleverly pulls the viewer into the illusion that Leonardo DiCaprio's Teddy is a US Marshall sent to the titular facility to investigate a missing persons case. He is, of course, a patient at the hospital, and his 'partner' Chuck (Mark Ruffalo) turns out to be his doctor, guiding him through a role-playing exercise as part of his treatment.
Jaws hit the floor when this twist revealed itself, but those who were paying close attention from the start should have realised that Chuck is no lawman.
During the scene where the pair first arrive on the island, they're asked to turn in their firearms. Chuck struggles to remove his revolver from its holster and Teddy seems to wonder why a federal agent with extenstive weapons training is fumbling around with a gun like a teenage boy trying to unhook a girl's bra for the first time.
This is the kind of task any officer of the law could perform blindfolded. The fact Chuck botched it should have aroused suspicions that the character wasn't all he seemed.