Where to watch That Most Important Thing: Love (1975) in the UK
That Most Important Thing: Love (1975) is currently available to stream in the UK on Sooner Amazon Channel. Last verified on 14 May 2026 by ScreenSearch.
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.
Watch the trailer
L'important c'est d'aimer (1975) | Trailer | Romy Schneider | Fabio Testi | Jacques Dutronc
Streaming options in the United Kingdom
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Last verified: — sourced from The Movie Database. Machine-readable: Markdown · JSON.
Cast & crew
Top-billed cast in That Most Important Thing: Love.
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Romy SchneiderNadine Chevalier -
Fabio TestiServais Mont -
Jacques DutroncJacques Chevalier -
Claude DauphinMazelli -
Roger BlinServais' Father -
Nicoletta MachiavelliLuce Lapade -
Klaus KinskiKarl-Heinz Zimmer -
Gabrielle DoulcetMadame Mazelli
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That Most Important Thing: Love — frequently asked questions
Where can I stream That Most Important Thing: Love in the UK?
That Most Important Thing: Love (1975) is currently included in subscriptions to Sooner Amazon Channel in the United Kingdom. Sign-in is required to play. Streaming licences change occasionally — ScreenSearch refreshes its data daily.
Is That Most Important Thing: Love on Netflix, Disney+ or Amazon Prime Video in the UK?
That Most Important Thing: Love is currently included with: Sooner Amazon Channel.
How accurate is this film's availability data?
Availability is sourced from The Movie Database (TMDB), which in turn pulls from JustWatch. Listings are refreshed daily. For purchase decisions, the provider's own site is the source of truth.
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