Just read an article on bbc.co.uk about staff at a UK cinema having to call emergency services three times in one night because of a spate of people passing out during horror film Saw III.
Am I totally missing the point here but why go and see these kinds of films if you're squeamish? Even the ads on the buses make me cringe so I know I would faint before even the opening credits have started.
Also, what kind of person goes to watch a film where the only synopsis is that people are tortured to death in extremely gruesome and graphic ways?