Here's hoping you dear readers have some excellent suggestions of both 'mainstream'ish and other films... I know many have enjoyed: East of Eden (a laugh here), Preaching to the Perverted, and Kinky Boots... Please join in and help build a list...
One evening on flicking channels (and it must have been very late) I stumbled across a film which surprised me in its content. You just reminded me to look it up, and from a content search I'm pretty sure it was Bitter Moon. I found it arousing, though as a fantasy, a bit extreme, even for my tastes. http://www.imdb.com/title/tt0104779/
Seen all those mentioned above, forgot the name of bitter moon but really enjoyed that and still remember some of the scenes now. Others I've seen are Story of O Maitresse Venus in furs Nick park did a documentary called Fetish The first real thing I saw on tv was a documentary called "hookers hustlers pimps and their johns" which featured a pro domme called mistress scarlet, I remeber that like it was yesterday, I was at school at the time and everyone was talking about it, we were obviously allowed to stay up too late