The Unknown Purple is a lost[3] 1923 American silent mystery film that was written and directed by Roland West.[4][5]

The Unknown Purple
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Directed by	Roland West[1]
Written by	Roland West Paul Schofield Alfred A. Cohn (titles)
Starring	Henry B. Walthall Alice Lake Stuart Holmes Helen Ferguson
Cinematography	Oliver T. Marsh[1]
Edited by	Alfred A. Cohn[2]
Production company	Carlos Productions[1]
Distributed by	Truart Film Corporation[2]
Release date	October 1923 (1923-10)
Running time	92 minutes[2]
Country	United States
Language	Silent (English intertitles)

Plot

After his release from prison, an inventor develops an eerie purple light that renders him invisible, enabling him to seek revenge on his unfaithful wife and his crooked business partner.

Cast

Production

Film historian Scott MacQueen cited "The Vanishing Men", a treatment West had targeted for film in 1921, as the inspiration for the film.[6] In that way, it’s also inspired by H.G. Wells’ novel The Invisible Man, which wouldn’t get a proper adaptation until a decade later in 1933. The film was adapted from a stage play which was written by Roland West and Carlyle Moore.[1] Comedian Johnny Arthur made his feature-length debut in The Unknown Purple.[7]

Release

The Unknown Purple was released in October 1923.[2]

Reception

In a contemporary review, Variety described the film as an "exceptionally well-made picture - among the best of its type - a mystery."[1] The review praised the photography of Oliver Marsh and the acting by Henry Walthall and Alice Lake.[1]

References

Bibliography

• Willis, Donald, ed. (1985). Variety's Complete Science Fiction Reviews. Garland Publishing Inc. ISBN 0-8240-6263-9.
• Soister, John T. (2004). Up from the Vault: Rare Thrillers of the 1920s and 1930s. McFarland. ISBN 0786417455.

External links

Wikimedia Commons has media related to The Unknown Purple.

• The Unknown Purple at IMDb
• Synopsis at AllMovie
• Advertisement at silenthollywood.com