Unknown World

Name: Unknown World
Released: 1951

1951 · Movie

74 min English

34 votes

AdventureScience Fiction

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

Where to watch in Japan

Available to stream with Cultpix, Artiflix.

Cultpix

Artiflix

Streaming in other countries

Sorted by distance from Japan

Showing 10 of 130 countries.

Cast, directors & writers

Bruce Kellogg

Wright Thompson, Jr.

Otto Waldis

Dr. Max A. Bauer

Jim Bannon

Andrew "Andy" Ostergaard

Tom Handley

Dr. James Paxton

Dick Cogan

Dr. George Coleman

George Baxter

Carlisle Foundation Chairman

Marilyn Nash

Dr. Joan Lindsey

Victor Kilian

Dr. Jeremiah Morley (uncredited)

Terry O. Morse

Director

Millard Kaufman

Writer

Keywords

cave exploration scientific expedition tunnel underground lake subterranean world underground cavern woman scientist poison gas

About streaming Unknown World in Japan

Our listings show Unknown World on Cultpix through subscription streaming in Japan.

Artiflix is listed with a free streaming offer for Unknown World in Japan. Check the service for account requirements.

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Automatically summarized from TMDB watch-provider listings supplied by JustWatch. Listings fetched 2026-10-24. Streaming availability can change. Rental and purchase offers are not included.