Nathalie... is a 2004 French film directed by Anne Fontaine, and starring Fanny Ardant, Emmanuelle Béart, and Gérard Depardieu. It is distributed by Koch-Lorber Films.

The main character, Catherine (Fanny Ardant) discovers that her husband (Gérard Depardieu) is cheating on her. She decides to pay a Parisian prostitute (Emmanuelle Béart) to have an affair with her husband, and report back to her.