With the cyclotram, an atomic-powered rock-boring vehicle, Dr. Jerimiah Morley leads an expedition into a subterranean world.
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🔍 Search on JustWatch →Unknown World is an acquired taste at 4.3/10. We recommend checking the trailer and synopsis before diving in.
Not every film is made for everyone. Read the synopsis, watch the trailer — you'll know right away if it's for you.
A classic from 1951. They don't make them like this anymore — which is exactly why you should watch it. Best for: genre fans and those open to something unconventional.
— MovieFinder Editorial
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)
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