I just got hold of this dvd while walking around the city today. It's the first lesbian movie that's produced in Hong Kong and is favourably mentioned in a few film festivals around the world. I've not watched it yet. But it's the film that help champion individual rights for all Hong Kong gays and lesbians.
Here's the link to find out more about the film.
http://www.cinaoggi.it/english/CINEMA/movies/butterfly.htm
Just wanted to add... after watching the movie 2 times, that this is a great movie. It's on the arty side... with flashbacks and stuff in a very nicely edited way. The whole story pretty much focuses on this teacher who's past is a secret from her husband. But the feelings and everything else comes back far stronger than she expects it. Marrying and having a kid was a way to "join" the normalcy of life which is expected of women. Yes... it's a lesbian theme movie and it's a bloody good one. There's a scene in a huge bath tub. If anyone can get their hands on a copy. Watch it. It's been screened during various film festivals.