shutter island where the main character is looking at a huge wall

World War II soldier-turned-U.S. Marshal Teddy Daniels investigates the disappearance of a patient from a hospital for the criminally insane, but his efforts are compromised by troubling visions and a mysterious doctor.

This thoughtful, often fascinating featurette focuses on the psychiatric aspects of "Shutter Island" and how consultant James Gilligan counseled the actors so they could better understand their reactions and motivations. We also learn about the controversial yet prevalent practice of lobotomizing violent mental patients and how the more humane approach of pharma-psychology gradually replaced it around the time period in which the story takes place.