I've always hated horror movies. I hate being scared and paranoid and on edge for the rest of the night. Even things that are just really intense in a paranormal way are too much for me. I have to admit, though, I do have a bad movie addiction that I struggle with as well. I've never seen any of the three things you listed, so I can't really judge where you are based on that.
But like others have said, I personally don't it's "wrong" unless it promotes or justifies immorality. Because the truth is, real life is dark. Darker than we know in many cases. So I don't think that "dark" things, as it's not making positive light of evil, is bad or a sin.