# Where to watch Le Mystérieux Monsieur Sylvain (1947) in the UK

> Le Mystérieux Monsieur Sylvain (1947) is not currently listed on any UK streaming, rental, or purchase service. Last verified on 17 May 2026 by ScreenSearch.

**Type:** Film  
**Year:** 1947  
**Runtime:** 95 minutes  
**TMDB rating:** 7.0/10  
**Genres:** Thriller  
**Region:** United Kingdom (GB)  
**Last verified:** 17 May 2026 (2026-05-17T22:24:19.405Z)  

## Synopsis

In an aero-naval base, a marine engineer who was about to deliver the name of a redoubtable spy is murdered. Shortly afterwards three different men appear on the crime scene, each of them claiming to be Monsieur Sylvain, the expected sleuth. But which of the three investigators is actually Sylvain? And what about this delightful young lady who arouses one of the police inspectors? Couldn't she be the murderous spy?

## Streaming options in the United Kingdom

No current UK streaming, rental, or purchase listings were found for Le Mystérieux Monsieur Sylvain in our daily-updated TMDB feed. The title may be on physical media only, awaiting UK release, or in a temporary licensing gap.

## Frequently asked questions

**Where can I watch Le Mystérieux Monsieur Sylvain in the UK?**

Le Mystérieux Monsieur Sylvain (1947) is not currently listed by any UK streaming, rental, or purchase service in our daily-updated TMDB feed. It may be on physical media, an aggregator, or pending a UK release. Check back later — availability changes frequently.

**Is Le Mystérieux Monsieur Sylvain on Netflix, Disney+ or Amazon Prime Video in the UK?**

Le Mystérieux Monsieur Sylvain is not currently included with any major UK subscription service. It may still be available to rent or buy.

**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.

## Sources

- Streaming availability: The Movie Database (TMDB), refreshed daily.
- Underlying licensing data: JustWatch.
- Canonical URL: https://www.screensearch.co.uk/watch/movie/559197/le-mysterieux-monsieur-sylvain-1947
- Poster image: https://image.tmdb.org/t/p/w500/89tbRfoAN09rd4yPQqPr177faw7.jpg
- JSON variant: https://www.screensearch.co.uk/watch/movie/559197/le-mysterieux-monsieur-sylvain-1947.json

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