Top of my list?
Blair Witch Project - Flat out a dumb movie with a poor concept. An ancient concept really, following typical paths and then they use a regular camcorder to make it appear more realistic. Anyone who is serious about film making loves it - anyone who actually likes good films, hated it. It is entirely built around a pompous film makers guild instead of the concept of actually making a decent movie. Boring, not scary, slow, and hard to watch.
Cape Fear - That one really struck me as a bunch of dumb heroes that were being outwitted by a crook. It was like Home Alone for adults. A good movie needs smart bad guys and smart GOOD guys also!
Panic Room - Ditto, except everyone seemed a bit mentally challenged.
Unbreakable - Yes, I fell asleep during it. Why bother? Bruce Willis is one of the most flat actors I've ever seen, but usually the movies he selects work well around that level of charisma. Not this one!
Those are the movies that got solid reviews and I would give a 2 stars or less rating to. There are tons of movies I haven't liked, but reviewers didn't like them as well. Hulk, Daredevil, Hitchhikers Guide, etc.
Some people hate block busters to hate them. I go to movies to watch a movie. I set the bar low, and if a movie does better than that, I walk away happy. Heck, if I'm blowing 30 bucks or more to take my wife to a movie I WANT to enjoy it - not hate it!