Chances are, she might have the view that men are supposed to be Dominant in the bedroom and life and all of that silly jazz. I've always had trouble initiating things in the bedroom because of my "Men are Dominant" views. (I'm a subbie, can't you tell?) I agree with what everyone has said.

If you show her the femdom video, maybe get something a little bit lighter than full on FemDom. Just keep conversing and conversing and taking those baby steps.