Art-House/Classic/Foreign/Avant-Garde/Obscure/Kino/French New Wave Films
So, Fuck it.
This list is now a compilation of the fore-mentioned types of film. I just felt like showcasing them for others to see - these are all recommended but not by me, personally.
I found them floating around on different film boards so they will vary in quality and there is now no structure to the list.
There are a lot renown and challenging films here to get into to, so dig in.