Tangled. By far the worst P.O.S I've ever seen in my entire life. I've seen the original D&D movie, All the Scary Movie clones, and none of them come close to that level of suck. There was a guy that owned a Comic store in my town that would chase out people that loitered during MtG games with that movie. It made hardcore MtG plays drop their cards and flee.
And yet I thought Tangled (the animated one) was a great movie.