This is a very interesting thread. Some blasts from the past being dredged up from subconscious self-preservation mind vaults and some quite contraversial choices, i would say.
I know I risk upsetting some people, so please keep in mind that I am expressing my views (quite strongly) and will always respect other people's. that said...
I know these things are subjective, but we're talking about the worst films of all time here. I can't believe people are including things like SW prequels or IJ4. Yes, they didn't meet peoples massive expectations and had some fairly cheesy bits, but they surely can't be included in a list of the worst films! In retrospect Ep 1 in particular stanRAB up very well. Next to anything recent by Mr Shamalamamalan they are Oscar material!
Blaire Witch was, for me, godawful... but then I'm not a massive horror fan. However, I could understand why it was so successful and therefore despite me personal feeling I wouldn't included it in my list.
A.I. was OK but no masterpiece.
I must disagree with Niel Luvs BB, though. Vanilla Sky was a towering pile of poo and was in no way intelligent and ranks as TCs worst film. Again, this is a subjective view but for anyone to say it's better than the first MI film (which was pretty good) or even WotW (which has some poor moments and suffers from too many departures form the story) suggests gto me a strange mind is at work.
I suspect some people are nominating films from genres they are not naturally attracted to and therefore are predisposed to frowm upon.
Anyway... a couple more nominations...
Maybe Baby (I bet Hugh Laurie is sooo proud)
Any film with Madonna in