Purely and strictly for the movie Shutter Island. Leo isn't known for making horror films or dipping his toe too much into the spooky end of things in the film world (unless you count the end of The Aviator where he went full on naked-unclipped-toenails-savin'-his-pee-in-jars Howard Hughes, which was super disturbing.)
Shutter Island is one of my favorite movies that I can watch over and over again. It has the makings of a great creepy movie. An island, for starters, mass confusion, olde-timey mental health dealings (lobotomies, anyone?) and a grand mental hospital. Not unlike the one that sits on the outskirts of my beloved home town that was also shutdown for malpractice in the early '80's....and now back in working condition.