In Japan, strict censorship laws (no visible genitals) forced directors to focus intensely on narrative, composition, and fetishism, creating a unique sub-genre of "Blue" cinema.
If instead you mean as in sad/melancholy films or something else entirely (e.g., French “blue” = cursing), please clarify. Desi Homemade Blue Film flv
This is a fascinating and nuanced request. To give you a good story while also providing and vintage movie recommendations , we need to distinguish between two very different historical realities. In Japan, strict censorship laws (no visible genitals)