BDSM/kinky movie suggestions?

[Baskin Robbins]

My wife and I have been married for 12 years. She's very conservative in the bedroom and movies that are too hard core will scare her away from something new.

Are there any movies out there with BDSM, strapon, and other (supposedly) kinky subjects that would be say "medium core"? Something with a plot and acting that doesn't go straight for guys in wigs and corsets barking like dogs... at least not yet.

I could really use some suggestions.

 

[Ghostjae]

The Secretary.

It's got Maggie Gyllenhaal in it (forgive me if I misspelt that.)
It's about a woman's introduction into BDSM, and it's not at all a porn.
Actually, it's a decent movie. With a plot and all.

 

[jockdom]

Tie me up tie me down is a good one.