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Unknown World (1951)

Approved | | Adventure, Sci-Fi | 26 October 1951 (USA)
Scientists use a gigantic drilling machine for an expedition to the center of the earth.


(as Terrell O. Morse)


(original screenplay)

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Complete credited cast:
Dr. Max A. Bauer
Tom Handley ...
Dr. George Coleman
George Baxter ...
Carlisle Foundation Chairman


Dr. Jerimiah Morley becomes convinced that the world is headed to an inevitable worldwide nuclear war. He organizes an expedition made up of a team of expert scientists and an atomic-powered rock-boring vehicle called a "cyclotram" to find a subterranean environment where holocaust survivors could live indefinitely. When funding falls through, independently rich adventurer Wright Thompson underwrites the project under the condition that he be allowed to go. As the group goes deeper beneath the Earth's crust, personalities clash, tempers flare, and the dangerous journey claims the lives of several expedition members. When they come upon an enormous underground expanse with its own ocean and phosphorescent light, it appears that their goal has been achieved. Written by Gabe Taverney {duke1029@aol.com)

Plot Summary | Add Synopsis


A Journey to the Center of the Earth (original poster) See more »


Adventure | Sci-Fi


Approved | See all certifications »




Release Date:

26 October 1951 (USA)  »

Also Known As:

Night Without Stars  »

Company Credits

Production Co:

Show more on  »

Technical Specs


Sound Mix:

(RCA Sound System)

Aspect Ratio:

1.37 : 1
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Did You Know?


Both the mountains mentioned, Mt. Lefat and Mt. Neleh, are fictional. See more »


Their ship called the "cyclotram" was supposed to be under 2500 miles of water. That is impossible because the pressure increases 165 time per mile one goes under water. That would mean about 6 million pounds per square inch. No hull could stand anywhere near that pressure. See more »


Wright Thompson: [referring to the scientists] Don't they ever talk?
Andy Ostergaard: Not unless they got something to say. That's the way it is with smart people,
Wright Thompson: Maybe they're not so smart. Maybe they don't know what they're doin' down here.
Andy Ostergaard: Listen, buster. Each one of them has taught at more colleges than you flunked out of.
Wright Thompson: So what are you doing down here among all those brains?
Andy Ostergaard: I manage to make myself useful. It might be well if you did the same thing.
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User Reviews

Low-budget and dated but surprisingly good
30 June 1999 | by See all my reviews

A group of scientists drive an enclosed vehicle into an extinct volcano and then bore more than a thousand miles into the earth. They're searching for underground sanctuaries in case the surface of the earth becomes uninhabitable due to nuclear warfare. This is one of those low-budget, black-and-white films from the 50's that you want to laugh at it, and while it does have its share of bad dialog and cheesy special effects, there's an earnest, committed quality here which eventually overcomes most of the obvious faults. Viewers looking for cheap thrills will be disappointed.

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