Quite a lot of "disturbing" films I have just found tedious, like SAW, human centipede etc.
I actually quite liked the first 2 Hostel films and seven. My sisters walked out of Wolf Creek, I found it moderately disturbing.
Funny Games though eurgh, I hate that film, so claustrophobic and horrid, I hate any kind of home invasion type thing. I don't do rape very well either, Irreversible was awful, I think I actually watched it on ff, with my hands over my eyes for most of it.
Lilya4eva is brutal, as is Breaking the waves and Antichrist, I just don't really know what to make of Von Triers if I'm honest.
The ring (Japanese version) shit me up good and proper, especially because I watched it on my own, then went to go to bed and the dvd player decided to switch itself back on with a screen of static, brown trouser time .
Life is Beautiful is pretty disturbing, I generally steer clear of those type of movies.
The Orphanage was pretty heartbreaking, Mum and Dad was bizarre. Tony:Serial Killer was brilliant.