/u/StopReadinMyUsername on reddit combined the average ratings (Critic's & Users) from IMDb, Rotten Tomatoes, Metacritic and Letterboxd, and then weighted and tweaked the results with general film data from iCheckMovies and IMDb to reveal the 1001 Greatest Movies of All Time.
Spanning the length of Roger Ebert's career as the leading American movie critic, this book contains all of his four-star reviews written during that time. A great guide for movie watching.
Taken from external source. 64 movies missing from original.