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.
Romy Schneider
Nadine Chevalier
Fabio Testi
Servais Mont
Jacques Dutronc
Jacques Chevalier
Claude Dauphin
Mazelli
Roger Blin
Servais' Father
Nicoletta Machiavelli
Luce Lapade
Klaus Kinski
Karl-Heinz Zimmer
Gabrielle Doulcet
Madame Mazelli
Michel Robin
Raymond Lapade
Guy Mairesse
Laurent Messala
Katia Tchenko
Myriam, prostitute
Paul Bisciglia
Assistant Director
Sylvain Lévignac
First Man in the Brewery
Olga Valéry
Woman with the Dildo
Jacques Boudet
Robert Beninge
Robert Dadiès
Doctor in the Hospital / Actor in the Theatre
Georges-Fréderic Dehlen
Actor in the Theatre
Jack Jourdain
Victor
Claude Legros
Manuel Rosenthal
Kira Potonie
Messala's wife
Michel Such
Electrician
Jacques Van Dooren
Verdurin
Nadia Vasil
Female Director
Sin May Zao
Vietnamese Girl
Gérard Zimmermann
Léonard
Claudine Beccarie
Girl at the Orgy (uncredited)
Frédérique Barral
Girl in the brewery (uncredited)
Michel Berreur
Second man in the brewery (uncredited)
Guy Delorme
Mazelli henchman (uncredited)
Jerry Di Giacomo
English transvestite
Serge Godenaire
Youth in the orgy (uncredited)
Gérard Moisan
Mazelli henchman (uncredited)
Manu Pluton
Man at the gym (uncredited)
Eric Vasberg
Third man in the brewery (uncredited)