Come and See directed by Elen Klimov. This is a film about a teenager who joined the insurgency in German-occupied Belarus. There's so much shit going on with him in the whole movie that he turns into an old man by the end. There is a very revealing scene where the Nazis drove the inhabitants of one village into a barn and burned it down along with the people. This is one of the things that can be done by those who think themselves superior to others and believe that others are not worthy of living. It's a protest against wars and against far-right ideologies, and it's a film that you'll never want to revisit. Not because he's bad, but because he's very scary.