43 user 10 critic

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)

Watch Now

From $1.99 (SD) on Amazon Video

Learn more

People who liked this also liked... 

Crime | Drama
    1 2 3 4 5 6 7 8 9 10 6/10 X  

A partially blind Englishman retires to the French Riviera. He meets and falls for the Widow of a French Resistance fighter but is horrified when he discovers she is involved with smugglers... See full summary »

Director: Anthony Pelissier
Stars: David Farrar, Nadia Gray, Maurice Teynac
Adventure | Sci-Fi
    1 2 3 4 5 6 7 8 9 10 3/10 X  

Four adventurers descend to the depths of the ocean when the cable on their underwater diving bell snaps. The rest of their expedition, believing them to be lost, abandons hope of finding ... See full summary »

Director: Jerry Warren
Stars: John Carradine, Robert Clarke, Phyllis Coates
Horror | Sci-Fi
    1 2 3 4 5 6 7 8 9 10 4/10 X  

An alien being with the power of invisibility lands in Santa Monica. Killing two people who attacked him due to the menacing appearance of his spacesuit, the creature takes it off while ... See full summary »

Director: W. Lee Wilder
Stars: Ted Cooper, Tom Daly, Steve Acton
Drama | Sci-Fi
    1 2 3 4 5 6 7 8 9 10 5.5/10 X  

A highway patrolman stops motorists on a highway after he hears news reports of a possible nuclear attack.

Director: Fredric Gadette
Stars: Seamon Glass, Thayer Roberts, Aubrey Martin
    1 2 3 4 5 6 7 8 9 10 6.6/10 X  

An omnibus of three Noel Coward tales, the first, " The Red Peppers", featuring Kay Walsh, Ted Ray, Martita Hunt, Frank Pettingell and Bill Fraser, about a bickering vaudeville couple who ... See full summary »

Director: Anthony Pelissier
Stars: Valerie Hobson, Nigel Patrick, Jack Warner
Certificate: Passed Mystery | Sci-Fi
    1 2 3 4 5 6 7 8 9 10 3.1/10 X  

An atomic scientist claims he was abducted by aliens after being injured in a plane crash.

Director: W. Lee Wilder
Stars: Peter Graves, James Seay, Steve Pendleton
    1 2 3 4 5 6 7 8 9 10 4.4/10 X  

UFOs are seen around Tokyo. Because they look like giant starfish the aliens cannot approach us without creating panic. Hence one of them sacrifices itself and takes the form of a popular ... See full summary »

Director: Kôji Shima
Stars: Keizô Kawasaki, Toyomi Karita, Bin Yagisawa
    1 2 3 4 5 6 7 8 9 10 4.3/10 X  

When an alien artifact discovered on Earth is found to have come from Venus, an international team of astronauts embarks to investigate its origins.

Director: Kurt Maetzig
Stars: Yôko Tani, Oldrich Lukes, Ignacy Machowski
Adventure | Sci-Fi
    1 2 3 4 5 6 7 8 9 10 4.5/10 X  

Scientists investigating an unusual meteor shower in a rural field are possessed by an alien force bent on an ulterior purpose.

Director: Freddie Francis
Stars: Robert Hutton, Jennifer Jayne, Zia Mohyeddin
Strongroom (1962)
Crime | Drama
    1 2 3 4 5 6 7 8 9 10 7.1/10 X  

During a bank robbery, the manager and a cashier are locked in the strongroom while the crooks escape. Later when the gang realise that their plan to release the pair has gone wrong, they ... See full summary »

Director: Vernon Sewell
Stars: Colin Gordon, John Chappell, Ann Lynn
Comedy | Drama
    1 2 3 4 5 6 7 8 9 10 6.5/10 X  

Kipps the draper's apprentice falls in love with a girl above his station. When he unexpectedly inherits a fortune, he thinks his dream has come true. But money can't make him a gentleman, or bring him the girl he really wants...

Director: Carol Reed
Stars: Michael Redgrave, Phyllis Calvert, Philip Frost
Adventure | Sci-Fi
    1 2 3 4 5 6 7 8 9 10 3.6/10 X  

In 2020, after the colonization of the moon, the spaceships Vega, Sirius and Capella are launched from Lunar Station 7. They are to explore Venus under the command of Professor Hartman, but... See full summary »

Directors: Curtis Harrington, Pavel Klushantsev
Stars: Basil Rathbone, Faith Domergue, John Bix


Complete credited cast:
Wright Thompson
Dr. Max A. Bauer
Andy Ostergaard
Tom Handley ...
Dr. James Paxton
Dr. George Coleman
George Baxter ...
Carlisle Foundation Chairman
Dr. Joan Lindsey


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


Adventure into the unknown! 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 detailed on  »

Technical Specs


Sound Mix:

(RCA Sound System)

Aspect Ratio:

1.37 : 1
See  »

Did You Know?


There seems to be some inspiration for this film taken from Jules Verne's "Journey to the Center of the Earth". Both feature an underground sea, in both the entrance to the Earth is close to the top of the Earth (Iceland in Verne's novel and Alaska in this film) and the escape from underground is unexpected and amazingly rapid. See more »


The boring tool on the front of the cyclotram is not large enough to make a hole of a diameter that would fit the cyclotram. Also, modern drilling bits for drilling though rock and other minerals can wear out in a few hundred feet of drilling, depending on the material. Modern drills often use 40,000 pounds to 90,000 pounds of force to drill holes up to 15 inches in diameter. To drill a hole 10 feet or more in diameter, with the speed they are going, would take hundreds of pounds of force, or be drilling in very soft dirt. Yet this drill has lasted for several thousand miles without replacement. Even allowing for the many passages they have found, the drill would have worn to the point of being completely ineffective at drilling any tunnels. See more »


Dr. Jeremiah Morley: Go back to what? To a world bent on self destruction? We can live the rest of our lives here in peace.
Dr. Joan Lindsey: Morley, you're wrong! This isn't peace! This is a resting place for the living dead! I don't believe it's the end of the world! I don't believe it's the end of mankind!
Dr. Jeremiah Morley: You're young! You don't know! I've lived through the terrors of two great wars! I've had enough!
See more »

Frequently Asked Questions

This FAQ is empty. Add the first question.

User Reviews

A Few Good Points In An Overall Yawner Of A Movie
26 July 2009 | by (Durham Region, Ontario, Canada) – See all my reviews

If you can imagine "Journey To The Centre Of The Earth" minus any and all excitement, then you have a pretty good grasp on what this movie is all about. The basic story revolves around Dr. Morley, a scientist who has become convinced that humanity is on the brink of a nuclear war (to the point at which his nickname has become "The Prophet Of Doom"), and so he assembles a team of experts who pack themselves into a fancy vehicle and bore (and I do mean bore in every sense of the word) hundreds of miles into the earth in an attempt to find someplace to ride out the nuclear storm. So they go down. And down. And down some more. And nothing much really happens, except for a few arguments among the team members. Even the scenes where team members get killed (and by the end three of them have bitten the dust) are anti-climactic at best.

Too bad, really. The plot had potential, and being made in the early 50's, when the threat of nuclear annihilation was a big topic for people, it could have delved into some of those questions in more depth. The acting wasn't great, but I've seen some of these shlocky 50's and 60's sci-fi flicks where the acting has been a lot worse. I even liked the opening of the movie, which gave us the basic background to the story disguised as one of those 50's newsreel type movies. Good qualities aside, though, a movie in which nothing much happens isn't a very good movie. 3/10

2 of 3 people found this review helpful.  Was this review helpful to you?

Contribute to This Page

Create a character page for: