In December of 1924 Bronia and Tylia Perlmutter were invited by Francis Picabia to attend a performance of the Dadaist ballet Relâche, which included a screening of a short film, Entr’acte, at intermission. Bronia was introduced to the film’s director, René Clair, after the show. Later that same month Picabia asked Bronia to participate in a production, Ciné Sketch, that he and Clair were putting on after the ballet on New Year’s Eve. Bronia agreed, and she and Marcel Duchamp appeared nude—Duchamp did have a strategically placed fig leaf—in a living tabloid of Lucas Cranach’s Adam and Eve, which Man Ray photographed.

A bit part in Clair’s film Le Voyage Imaginaire (1926) followed. The two fell in love and were married in 1926. Quoted from tales of a mad cap heiress (Blogspot)