/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 All-Time Worldwide Box office list includes movies that have grossed over $200,000,000 at the box office during their theatrical runs. Only theatrical box office receipts (movie ticket sales) are included, video rentals, television rights and other revenues are thus ignored. The total may include theatrical re-release receipts. Figures are not adjusted for inflation.