The Boy in the Striped Pajamas[1] I should have seen it coming but it was a freight train, never did a movie hit so hard like that. War though a child's eye is worse than the adult perspective of war.
I could not smile for days after watching that one. One of the greatest movies ever made, but when I recommend it to anyone, I always warn them that if they are depression prone, they should not watch it at all.
So _intense_. Even years later, just reference to it gives me goosebumps.
Yes. That's one of the best movies that I've only seen once. It occupies a rare intersection between shows that I consider excellent and shows that I'd rather not watch again.
Charlie Chaplin's movies. Modern Times is very funny, but the end scene. I cry every time. City lights, ditto, the end scene is so strong. And Limelight. And the Gold rush...
[1] http://www.imdb.com/title/tt0914798/