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.
Starring
Romy Schneider, Fabio Testi, Jacques Dutronc
Updated Feb 16, 2026
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Year context
That Most Important Thing: Love was released 51 years ago in 1975.
Overview
Servais Mont, a freelance photographer who works taking compromising photos, gets fascinated by Nadine Chevalier, a tormented low-budget movie actress marrie...
That Most Important Thing: Love is a Drama, Romance film with a runtime of 1h 53m.
CAST (20)
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
GM
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
RD
Robert Dadiès
Doctor in the Hospital / Actor in the Theatre
GD
Georges-Fréderic Dehlen
Actor in the Theatre
JJ
Jack Jourdain
Victor
Claude Legros
Manuel Rosenthal
KP
Kira Potonie
Messala's wife
DETAILS
FREQUENTLY ASKED QUESTIONS
What is That Most Important Thing: Love about?
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.
How long is That Most Important Thing: Love?
That Most Important Thing: Love has a runtime of 113 minutes (1h 53m).
Who stars in That Most Important Thing: Love?
The cast of That Most Important Thing: Love includes Romy Schneider, Fabio Testi, Jacques Dutronc, Claude Dauphin, Roger Blin.
What is the rating of That Most Important Thing: Love?
That Most Important Thing: Love has a rating of 7.0 out of 10 based on 128 votes on TMDB.
GENRES (2)
Drama
Romance