Don Juan, or If Don Juan Were a Woman (Don Juan ou Si Don Juan était une femme...)

Don Juan, or If Don Juan Were a Woman (French: Don Juan ou Si Don Juan était une femme...) is a 1973 French-Italian co-production by Roger Vadim. Billed as an erotic drama, it runs about 90 minutes and exists in French and English-language versions. It is also known as Don Juan 73, as Ms. Don Juan in the English dub released in the UK, and in Turkey as Don Juan '74.

The premise retells the legend of the great seducer with the sexes reversed: the medieval lover-hero is reincarnated in a woman, which changes everything. Our heroine knows her own worth and can steer men as she pleases, yet that power does not make her happy. Brigitte Bardot plays the lead, joined by Jane Birkin, Robert Hossein, Mathieu Carrière and Maurice Ronet. The cast list also includes Dominique Zardi, Henri Attal, Paul Bisciglia, Michèle Sand, Robert Walker Jr. and Ann Zacharias.

Vadim wrote the screenplay with Jean Cau and directed. It was his fifth film with his former wife Bardot, whom he had made an international star with And God Created Woman in 1956, and it came just before Bardot retired from acting. The score is by Michel Magne, with music by Mozart also featured.