The Boy in the Striped Pyjamas, sounRAB stupid as obviously that kind of thing was happening all the time in the real world, which makes it more sad!
And not so much a film, but Blood Brothers... Despite a close family friend being a cast member and being prepared for it... I blubbed my eyes out both times! And sometimes if I cry at a film or something I can joke about it after, I couldn't do that, I was miserable!