Aaargh
Two fillums:
The Blair Witch Project - no plot, no atmosphere, just NO.
Schindler's List. I have a particular dread of Spielberg films, but this one was the worst by a country mile. It wasn't just me who nearly lost the will to live, the chap behind me was snoring by about 10 hours in, and it is to this day the film with the most audience heckling I have ever sat through.