Re: Most disturbing movie you've seen?
I've seen 'Martyrs' and that shit just made me depressed, seeing the girl getting the crap beaten out of her. Can't really watch too many disturbing movies as I prefer to stay mostly upbeat after watching a movie (most of the time).
I'll mention a movie that hasn't been mentioned yet and that is Threads, a British television drama screened on BBC television in 1984 that accounts the effects of nuclear war on the city of Sheffield. The first half of the movie is just the country preparing for the worst, but when it officially happens, it is fucking scary and ultimately disturbing, primarily because it's not of what we could imagine to happen, but really what could very well have been a reality, especially at the time. The second half of the movie and the very end are some of the most depressing scenes I've ever witnessed. Safe to say I have second thoughts about ever watching this movie again.
The whole movie is on YouTube, but for a little taster, watch this clip, especially the bit at 1:21 which is pretty damn harrowing.