If you want a cross-section of American opinion of recent films, Metacritic seems to do a better job than my previous favourite, the Movie Review Query Engine of collecting links to reviews from a variety of newspapers and giving an easy summary.
The Internet Guide movie database offers movie information about a large number of films over a long period and also offers more than just the summary information provided by the reigning champ of movie information sites, the Internet Movie Database. If you are looking for very basic information about an obscure film you might also try cnmovies.com which features the extensive Halliwell’s movie guide database.
