I've picked out all the films (anything that was not an anime series, TV or otherwise, but including shorts) I could see from the Anime News Networks Top 1000 Best Rated series list. I take the info from ANN simply because they have the most total ratings on the Internet, and their well-established user base. I excluded a bunch of movies that continued in long chains from TV series.
Data updated July 2024
Those interested can compare the ANN rankings to the Letterboxd Top 100 Anime list.