/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.
The 2013 version of TSPDT’s 1,000 Greatest Films is finally here. After months of stop-start, data-building and unhealthy calculation antics, the latest group of 1,000 movie offerings has been assembled once again for your pleasure (or displeasure). Depending on your observation skills, you may have already noticed that there is a new presentation for this ongoing project.
The old 2012 edition can be found @http://trakt.tv/users/sp1ti/lists/they-shoot-pictures-dont-they-1000-greatest-films-2012
This list is drawn from the second edition of "The New York Times Guide to the Best 1,000 Movies Ever Made", published in 2004. It contains a selection of 1000 reviews that have been printed in The New York Times in a time period of over seven decades. The majority of movies in this book are among the "10 Best Films" chosen by New York Times critics at the end of each year.