M. Night's films seem to be getting steadily worse...

I liked The Sixth Sense. I enjoyed Unbreakable too (although I didn't think it was quite as good). Signs made me roll my eyes. The Village was worse. The Happening was truly, truly awful (the only way I could watch it was with RiffTrax).

EDIT: I forgot Lady in the Water, which was, to be honest, pretty forgettable. It wasn't as bad as The Happening though (*shudder*).