If you want to watch some great movies then stop watching AAA productions. There are plenty of national movies from France, Czech or Poland.
As example i can recommend you https://en.wikipedia.org/wiki/How_to_Drown_Dr._Mracek,_the_Lawyer It will be hard to download it with english subtitles but it's worth to watch!
RE: Underrated films and hidden gems: Spoiler-free recommendations for those cozy film nights!