1976
France

I recently bought a DVD of this film in a large music/video/DVD store at a budget price (and not in the adult section!). It's about a Paris mistress who's paid to be a SM dominatrix, played by Bulle Ogier (no, I've not heard of her before either). She has very nice blonde hair, but dons a brunette bob wig about 45mins. into the film to create the classic dominatrix look. The whole fim is strangely unsexy, though.