These are films that Quentin has mentioned in best-of lists, end of the year top films lists, QT Film Fests, podcasts, off-hand remarks in interviews, etc.
These have been sourced from many lists online, and made available here, in one spot, for your enjoyment.
Sources:
https://screenrant.com/quentin-tarantinos-favorite-movies-time-ranked/
https://mubi.com/lists/quentin-tarantinos-favorite-movies
https://imdb.com/list/ls043093231/
https://faroutmagazine.co.uk/quentin-tarantino-favourite-11-films-handwritten-list/
https://www.indiewire.com/gallery/quentin-tarantino-favorite-movies/
https://wiki.tarantino.info/index.php/Tarantino's_favorite_films
https://www.pulpfiction.com/quentin-tarantinos-top-20-films-1992-to-2009
Please comment on any that I may have missed.
This collection includes Spy films, themes and government intelligence based titles.
The Non-American Noir Films (1940-1964) lists 93 Non-American films (mainly British) from 'The Golden Period' that are either fully-fledged noir or have strong noir elements.
A List of Movies Quentin Tarantino Likes
by eyechartVIP 6