The next film I'm suggesting is 1970s' A Swedish Love Story. I actually was introduced to this film after I watched a music video for Thieves Like Us- "Shyness."
If you want a thorough description for this film, I can't give it to you because I was confused in certain bits of the film. The film is about 2 youths, Par and Annika in Sweden who are going through all of the awkwardness of adolescent relationships along with their really strange families. There was some weird stuff going on in this film. For instance, there was one character called, "Ice-Man," who randomly punches Annika's sister, Eva in the face while they were laughing and enjoying some sort of sit-down party. Color me confused. I'd still watch it several times though.