

Port Sinister
“They Wanted Treasure...And They Didn't Care How They Got It!”
Synopsis
A 17th-century Caribbean port rumored to have frequented by pirates rises from the ocean floor, where it came to rest after an earthquake many years before. A scientist wants to study it, some thugs want the treasure alleged to be stored there, a bunch of mutated giant crabs living there attack them all.
Top Cast
Explore Star Directory →James Warren
Tony Ferris
Lynne Roberts
Dr. Joan Hunter
Paul Cavanagh
John Kolvac
House Peters Jr.
Jim Garry
Robert Bice
George Burt
William Schallert
Collins
Merritt Stone
Nick
Norman Budd
Akers
Ken Terrell
Hollis
Eric Colmar
Christy
Dayton Loomis
Mr. Lennox
E. Guy Hearn
Capt. Crawley
Anne Kimball
Nurse
Helene Winston
Florence
Marjorie Stapp
Technician
Charles Victor
Lieutenant
Release History & Theatrical Window
April 10, 1953
Wide Cinema Exhibition
Key Information & Fast Facts
- Director
- Harold Daniels
- Screenplay & Story
- Aubrey Wisberg, Jack Pollexfen
- Original Score
- Albert Glasser
- Original Title
- Port Sinister
- Country of Origin
- United States of America
- Spoken Languages
- English
- Runtime
- 1h 5m
- Production Studios
- American Pictures Company, RKO Radio Pictures
Creative Leadership & Key Crew
Harold Daniels
Aubrey Wisberg, Jack Pollexfen
Albert Glasser
William Bradford
Jack Pollexfen, Aubrey Wisberg
Department Leadership Roster
Jack Pollexfen
Producer
William Bradford
Director of Photography
Aubrey Wisberg
Writer
Albert Glasser
Original Music Composer
Harold Daniels
Director
Jack Pollexfen
Writer
Aubrey Wisberg
Producer
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 Port Sinister.
Featured In Curated Collections
Editorial lists, community rankings, and cinematic collections featuring Port Sinister.
list2
1950s Sci-Fi Boom
Science fiction films of 1950 to 1959.
watch
ALL MOVIES
Similar Titles to Port Sinister
Movies sharing stylistic DNA, tone, and thematic storytelling
More Like Port Sinister
Recommended titles matching themes, cast, and genres.












Frequently Asked Questions About Port Sinister
Quick factual answers about cast, synopsis, director, box office, and release information.
What is Port Sinister about?
A 17th-century Caribbean port rumored to have frequented by pirates rises from the ocean floor, where it came to rest after an earthquake many years before. A scientist wants to study it, some thugs want the treasure alleged to be stored there, a bunch of mutated giant crabs living there attack them all.
Who directed Port Sinister?
Port Sinister was directed by Harold Daniels.
Who stars in Port Sinister?
The principal cast of Port Sinister includes James Warren, Lynne Roberts, Paul Cavanagh, House Peters Jr., Robert Bice.
When was Port Sinister released and how long is it?
Port Sinister was released in 1953 with a total runtime of 1h 5m.
Who composed the musical score for Port Sinister?
The original motion picture soundtrack for Port Sinister was composed by Albert Glasser.
What is the age rating and content advisory for Port Sinister?
Port Sinister holds official age classifications: US: NR (Not Rated — Evaluated outside standard classification boards.).


















