Lately I've been watching a lot of french films from the 50s + 60s and drawing all sorts of inspiration from them. I recently watched Breathless and now I'm on Jules and Jim.
They all have story plots centered around political and social issues of their time so you get a good dose of history through rich story telling and layered characters. They also have a fun visual style and really experiment with their cinematography.
Aside from every film being beyond hip, chic and cool their style is to die for. I really get inspired by how the guys and the girls dress in these films. Total gamines and classic looks for daysss
Here's a link with some of the movies if you wanna check them out. I definitely recommend it.