Be Kind, Rewind
Kind of a joke answer because if you don’t know it, the entire premise is some guys remaking classic movies based on their memory and just a bunch of whatever junk they can find. It’s adorable, clever, inventive, and bewilderingly creative. It’s by the director of Eternal Sunshine of the Spotless Mind, several White Stripes videos, the Daft Punk video for Around the World, and so much other brilliant stuff.
The question wasn’t “film that uses no digital effects”, it was “film that uses a lot of practical effects”. I called this movie out because it’s basically all about practical effects.