The movie was directed by the French filmmaker Catherine Breillat and was selected for the 2007 Cannes Film Festival.

[3] In 1835 Paris, Ryno de Marigny (Fu'ad Aït Aattou), before marrying the young and innocent Hermangarde (Roxanne Mesquida), makes a last visit to La Vellini (Asia Argento), his Spanish mistress, to bid goodbye in an act of lovemaking.

His liaison with La Vellini is the subject of Parisian gossip, and before Hermangarde's grandmother gives her blessing, she wants to hear from Ryno everything about this relationship.

[4] Rotten Tomatoes reports that 77% of 98 critics gave the film a positive review, for an average rating of 6.7/10.

The site's consensus states that "More complicated than your average bodice ripper, Catherine Breillat's Last Mistress features beautiful costumes, wrought romances, and a feral performance from Argento.