That Most Important Thing: Love
Servais Mont, a freelance photographer who works taking compromising photos, gets fascinated by Nadine Chevalier, a tormented low-budget movie actress married to an eccentric film photo collector.
- Genre: Drama, Romance
- Studio: Albina Productions S.a.r.l., T.I.T. Filmproduktion
- Keyword: underground world, based on novel or book, photographer, underground film, theatre company, still photography, sexual blackmail
- Cast: Romy Schneider, Fabio Testi, Jacques Dutronc, Claude Dauphin, Roger Blin, Nicoletta Machiavelli