Below are recommendations and historical context for both vintage adult cinema (the "Blue" genre) and generally acclaimed classic movies from that era.
Before the advent of the VCR and the accessibility of hardcore pornography, cinemagoers frequented "Art House" theaters. Here, the definition of a "Blue Movie" was fluid. It referred to films that were provocative and sensual but driven by narrative, character study, and high production values. Desi Homemade Blue Film flv
If you want a fictional treatment that handles this material respectfully: Below are recommendations and historical context for both