Ugetsu is one of my favourite films, I own the Criterion set.

Lots of great erotic stories in Japanese literature, it's what makes all the roman porn and pinky violence films of the 70s awesome too.

Kawabata's House of Sleeping Beauties is already porn basically, just really melancholy porn. Like the scene when he remembers sucking on a nipple so hard he can taste her blood.

Would Andrea Dworkin approve? She was a big fan of professional pervert and novelist Kobo Abe.