While the list is always changing, the top films have remained quite unchanged for a number of years now. Their top-rated movies list is compiled of films that have been rated by millions of viewers. IMDb remains one of the most popular movie information sites on the internet. RELATED: 10 Best Movies Of All Time, According To Ranker In that sense, IMDb's list of the top-rated films of all time might be among the best of its kind. However, the closest thing to a definitive ranking is a list based on audience ratings. What are the best movies of all time? Ranking the best movies ever made is a pretty impossible task.