The Unknown Quantity
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.
Top Cast
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Release History & Theatrical Window
April 14, 1919
Wide Cinema Exhibition
Key Information & Fast Facts
- Director
- Thomas R. Mills
- Screenplay & Story
- G. Marion Burton, O. Henry
- Original Title
- The Unknown Quantity
- Country of Origin
- United States of America
- Spoken Languages
- No Language
- Runtime
- 50m
- Production Studios
- Vitagraph Company of America
Creative Leadership & Key Crew
Thomas R. Mills
G. Marion Burton, O. Henry
Department Leadership Roster
Thomas R. Mills
Director
G. Marion Burton
Writer
Age Classification & Content Advisories
Official viewer rating standards and content warnings across international classification boards.
NR: Not Rated — Evaluated outside standard classification boards.
International Certification Matrix
Not Rated — Evaluated outside standard classification boards.
Production Stills & Gallery
Official cinematic photography and background stills for The Unknown Quantity.
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Frequently Asked Questions About The Unknown Quantity
Quick factual answers about cast, synopsis, director, box office, and release information.
What is The Unknown Quantity about?
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.
Who directed The Unknown Quantity?
The Unknown Quantity was directed by Thomas R. Mills.
Who stars in The Unknown Quantity?
The principal cast of The Unknown Quantity includes Corinne Griffith, Huntley Gordon, Harry Davenport, Jack McLean, Jack Ridgeway.
When was The Unknown Quantity released and how long is it?
The Unknown Quantity was released in 1919 with a total runtime of 50m.
What is the age rating and content advisory for The Unknown Quantity?
The Unknown Quantity holds official age classifications: US: NR (Not Rated — Evaluated outside standard classification boards.).