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Unknown World poster
MOVIE

Unknown World

TMDb4.4IMDbView on IMDb ↗1951-10-26· 74 min
AdventureScience Fiction

With the cyclotram, an atomic-powered rock-boring vehicle, Dr. Jerimiah Morley leads an expedition into a subterranean world.

Top cast

Below are the streaming services currently carrying the movie “Unknown World” in the United Kingdom, along with how each offers it (subscription, buy, or rent) and a direct link. Licensing differs by market, so availability in the United Kingdom can differ from other countries.

Where to watch Unknown World in United Kingdom

Netflix
Netflix
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OSN+
OSN+
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Amazon Prime Video
Amazon Prime Video
Available
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Shahid
Shahid
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Watch It
Watch It
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TOD
TOD
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Disney+
Disney+
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Apple TV+
Apple TV+
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Availability can change as licenses rotate — confirm on the provider’s page before subscribing. Last checked: 21 Sept 2026.

Where to watch Unknown World by country