Top 250 movies of all time?

IMDB has a list of registered user-voted top 250 movies of all time. I've seen a lot of movies on that list, but not 3.5 of the top 10 (Godfather, Godfather Pt 2, Schindler's List, and I only saw part of the Shawshank Redemption). Well, "the best" always depends on one's criteria. Still, I wouldn't mind seeing a few more flicks that're on that list.