Just 2 recent ones:
The Last Airbender - ........what the fuck. Shymalan, you are a master. Seriously, I don't know how you could fuck this up - the damn thing was basically already designed! Seriously, awful.
THAT IS NOT GENERAL IROH!!!
Christ, are the Earthbenders doing the fucking Nutcracker just to throw a stone at someone?
Ugh...
The Human Centipede - Bwhahahahaha! Hilarious. Probably one of the funniest movies I've ever seen. Seriously, the concept is so damn awful and ridiculous that I laughed the entire way through the "horror" of it all. Seriously, sewing people's mouths to asses is your dream as a master surgeon? Man, that's...ridiculously funny. Awesome movie on the sheer inanity of the concept.