Worst movie I ever saw....no idea, I don't watch many bad movies if I can help it. I think I hated Love Actually quite a bit--a swamp of a plot riddled with holes and with little meaningful/believable character development.
I personally loved The Dark Knight despite its plot holes (the biggest one being why did "Two-Face" turn evil all that suddenly). Epics I didn't enjoy include The Kingdom, The Kingdom of Heaven (mostly because it was disappointing, I hear the extended version is better), and, may God curse it forever, TROY. I HATE THAT MOVIE. Even Alexander was better than that one.