Well, I can only name a couple, but here goes:
Transformers 1 - Throughout my childhood, I mostly ignored the whole Transformers franchise, save for wathching a few cartoons here and there. Transformers was pretty cool, but not this. This was a torrent of trendy mediocrity, putting the robots in the background to provide explosions and special effects and introducing a bunch of uninteresting stock HUMAN characters center stage. It also gets special mention for containing one my most hated cliches of all time, the whole "reverse-engineered alien technology is the source of the modern era" bullcrap, provided here by Megatron's inert body. To even suggest such a thing speaks tremendous disrespect to thousands of hardworking American (or otherwise) scientists, engineers, and technicians who devoted their lives to the pursuit of knowledge. The Transformer's re-design was pretty lousy, too.
The Surrogates - Bruce Willis, you are DEAD to me! When I heard about this movie, and also heard that Bruce Willis would play as a cop hunting down some anti-robot hippy-terrorists, I eagerly went to see it, expecting some righteous en-masse hippy death. But alas! What I got was some completely baseless angst, one or two action scenes that do that terrible camera-shaking thing, and worst of all, the hippies win!
Huh, I thought I could come up with at least three. Ah well, usually when I go into a movie my brain shuts down, probably as a defense mechanism of some kind. As such, I could probably never be a movie critic.