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Find where to watch That Most Important Thing: Love (1975), a movie. Check streaming availability, rental, and purchase options on WhereCanIWatch.tv.

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The poster features two individuals lying side by side, their faces partially obscured by a large "LOVE" text. The sepia-toned, grainy aesthetic evokes a nostalgic, emotional atmosphere. The composition suggests intimacy and connection, capturing the essence of a heartfelt moment.

That Most Important Thing: Love

1975 · Movie · 113 min· Updated Apr 2026
⭐7.0
🍅93%
Scroll for options
🌐French
Rated:R

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.

That Most Important Thing: Love is a film that explores themes of underground world, based on novel or book, photographer. It also touches on underground film and theatre company and still photography.

Trailer

Director

Andrzej Żuławski

Cast

Romy Schneider, Fabio Testi, Jacques Dutronc, Claude Dauphin, Roger Blin, Nicoletta Machiavelli, Klaus Kinski, Gabrielle Doulcet, Michel Robin, Guy Mairesse

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The poster features two individuals lying side by side, their faces partially obscured by a large "LOVE" text. The sepia-toned, grainy aesthetic evokes a nostalgic, emotional atmosphere. The composition suggests intimacy and connection, capturing the essence of a heartfelt moment.

That Most Important Thing: Love

1975•⭐ 7.0•113 min•Updated Apr 2026
🌐French
Rated:R
⭐

IMDb

7.0/10

🍅

RT Critics

93%

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.

That Most Important Thing: Love is a film that explores themes of underground world, based on novel or book, photographer. It also touches on underground film and theatre company and still photography.

Director

Andrzej Żuławski

Cast

Romy Schneider, Fabio Testi, Jacques Dutronc, Claude Dauphin, Roger Blin, Nicoletta Machiavelli, Klaus Kinski, Gabrielle Doulcet, Michel Robin, Guy Mairesse

Free MoviesSupernaturalTrue CrimeSmall TownComing SoonWorld War IIPost-ApocalypticSamuraiDystopiaSlasherSurvivalTime TravelRoad TripTrendingConspiracyFree MoviesSupernaturalTrue CrimeSmall TownComing SoonWorld War IIPost-ApocalypticSamuraiDystopiaSlasherSurvivalTime TravelRoad TripTrendingConspiracy

0 options ranked by value · 🇺🇸 United States

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underground world · based on novel or book · photographer · underground film · theatre company · still photography · sexual blackmail

That Most Important Thing: Love (1975) streaming availability is currently being verified. Availability last verified April 6, 2026.

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That Most Important Thing: Love (1975) is available to stream on Amazon Prime, Apple TV Store, Fandango At Home. Compare prices and options on WhereCanIWatch.tv.