Anything that shows excruciating pain, e.g. bones visibly breaking, operations etc.
For example, I think Black Hawk Down is a pretty good film (but as always, the book is better!) however the scene where they have to operate on the solider while in the town... do not like. I'm fine reading about it, but I hate watching it.
When I was younger I remember being scared by Titanic for some reason...
Former SciFi IT Officer now taking great pleasure in telling the current committee that they're doing it all wrong and that they should get off my lawn.
You'll mainly find me at Anime, but also at some of the Classic and Contemporary screenings. I'm usually in the student centre before screenings too.