Ahh I know what you're talking about with Martyrs. That scene where she was (SPOILER)pulling out those things from the gross girl's iron mask was one of the most physically disturbing scenes I've seen. And where mentioned girl was (SPOILER)trying to cut off her own arm. Ugh xD

[Rec] is a good movie. Pretty damn scary D:

As for crappy horror movies, all I can think of right now is Mirrors. That was really tacky. I'm sure there are others that I've simply repressed, though.