Rotten Tomatoes. I find it useful, since the so-called Tomatometer mirrors the reviews penned by movie critics, whereas a secondary average rating section features the 'lay people''s opinion.
IMDB is best for movie information and Rotten Tomatoes is for movie reviews, I also like zmoviedb which is cool but with limited contents, hope it will grow
does any of them have a forum with alot of people, i have a celeb pic forum and post all my threads at imdb and get tons of traffic from there. it be nice to go to anotherr site like imdb
This is a very far-out option, but if you know the tiniest bit of russian, kinopoisk.ru. It's essentially exactly like IMDB in terms of available information and reviews, however I find that the ratings for the movies correspond better with my personal taste. I only go there for very niche films though, because my russian isn't good. IMDB > Rottentomatoes > Anything else.