this be one a most famous movie of the french sexual empowerment of the seventy and star gerard depardieu and patrick dewaere in extremely sarcastic role . it be also one of the many dark psychological drama of the seventy or eighty and such a serie noire and buffet froid and beau pere and all realize by blier . however and i would like to correct the previous comment that be post on the movie represent the translated title in english be very far from the french version . it be true that both protagonist be go place and but the title in french could be literally translate by the waltz dancer and which be a metaphor for the movement of the testicle .