Movie

The Unknown Quantity

★ 8.0(1)191950m

The Unknown Quantity isn't available to stream, rent or buy in South Korea right now. Availability changes often, so check back soon. Availability checked 11 June 2026.

Where to watch The Unknown Quantity

🇰🇷 South Korea

No streaming, rental or purchase options are listed in South Korea right now. Availability changes often — try switching your region in the header.

Good to know

Director: Thomas R. Mills
Release date: 1919-04-14
Runtime: 50m
Language: No Language
Status: Released
Country: United States of America
Studio: Vitagraph Company of America

About The Unknown Quantity

The Unknown Quantity is a 1919 movie in the Drama genre, directed by Thomas R. Mills, starring Corinne Griffith, Huntley Gordon and Harry Davenport. It has a runtime of 50 minutes. It holds an average rating of 8.0/10 from 1 viewers. Below you can see where to watch The Unknown Quantity in South Korea — across streaming, rental and purchase options — along with the full cast, trailer and viewer reviews.

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.

Cast

Corinne Griffith

Mary Boyne

Huntley Gordon

Dan Kinsolving

Harry Davenport

Septimus Kinsolving

Jack McLean

Sammy Boyne

Jack Ridgeway

Thomas Boyne

F.R. Buckley

Peter Kenwitz

Themes & keywords

lost film

Frequently asked questions

Where can I watch The Unknown Quantity in South Korea?+

The Unknown Quantity is not currently listed on any streaming, rental or purchase service in South Korea. Availability changes often, so check back or switch your region.

Is The Unknown Quantity on Netflix?+

The Unknown Quantity is not on Netflix in South Korea right now.

How long is The Unknown Quantity?+

The Unknown Quantity has a runtime of 50 minutes (50 minutes).

Who stars in The Unknown Quantity?+

The Unknown Quantity stars Corinne Griffith, Huntley Gordon, Harry Davenport, Jack McLean and Jack Ridgeway.

When did The Unknown Quantity come out?+

The Unknown Quantity is a 1919 movie directed by Thomas R. Mills.

What genre is The Unknown Quantity?+

The Unknown Quantity is Drama film.

Who directed The Unknown Quantity?+

The Unknown Quantity was directed by Thomas R. Mills.