# Where to watch The Unknown Quantity (1919) in the UK

> The Unknown Quantity (1919) is not currently listed on any UK streaming, rental, or purchase service. Last verified on 4 May 2026 by ScreenSearch.

**Type:** Film  
**Year:** 1919  
**Runtime:** 50 minutes  
**TMDB rating:** 8.0/10  
**Genres:** Drama  
**Region:** United Kingdom (GB)  
**Last verified:** 4 May 2026 (2026-05-04T05:44:01.337Z)  

## Synopsis

Mary Boyne, who made shirts at four dollars a week, had no place for love in her life - only despair and hate for the son of the man who had plunged her family into deepest distress. Peter Kenwitz loved Mary, but because he was a mathematician and a pessimist by trade, his love was as hopeless as her chance for happiness.

## Streaming options in the United Kingdom

No current UK streaming, rental, or purchase listings were found for The Unknown Quantity 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 The Unknown Quantity in the UK?**

The Unknown Quantity (1919) 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 The Unknown Quantity on Netflix, Disney+ or Amazon Prime Video in the UK?**

The Unknown Quantity 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/982220/the-unknown-quantity-1919
- Poster image: https://image.tmdb.org/t/p/w500/tk1NSShE9wOBoDwv6OfvYNLRyqa.jpg
- JSON variant: https://www.screensearch.co.uk/watch/movie/982220/the-unknown-quantity-1919.json

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