I dunno, I don't watch movies or read books for a sensible, realistic portrayal of BDSM. I want to see the stuff that I would never do in real life, but I still enjoy in fantasy -- where the scary parts are actually scary. I think it would be cool to see kinky sex portrayed more positively in movies and TV, but I don't particularly want everything in fiction to be SSC with safewords and limits, you know?
And about Secretary -- I've heard a lot of people complaining that it made it look like you can't be kinky unless "there's something wrong with you." I don't really understand that complaint, because I guess I don't know anyone, kinky or otherwise, who doesn't have some kind of past trauma or emotional difficulty. Life is just tough that way.