Freddy vs. Jason. This movie had crapfest written all over it. But they kept it silly, kept it stupid, and made a movie that was a lot of fun.
Dawn of the Dead remake. I guess I can't say that I thought it looked awful, because the ads were alright. But knowing the track record of horror movies over the last decade, I was VERY skeptical, to say the least. They knocked this one out of the park. The first ten minutes or so are superb.