One of the worst for me was "Eye for an Eye" with Kiefer Sutherland (looking tremendiously like James Hetfield at that time), an extremely disturbing Sally Field and a simply hilarious story.
And I think in the eighties there was some kind of slasher movie about an evil lawnmower terrorizing innocent golf players. Hmm, actually this one sucks so much, that it rules in some way. :Spin:
Concerning modern films I think "The Leauge of Extraordinary Gentelmen" sucked to the bone. I couldn't believe Sean Connery was willing to be part of such a piece of s**t.