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Unknown World

  • 1951
  • Approved
  • 1h 14m
IMDb RATING
4.2/10
1.5K
YOUR RATING
Bruce Kellogg and Marilyn Nash in Unknown World (1951)
AdventureSci-Fi

Scientists use a gigantic drilling machine for an expedition to the center of the earth.Scientists use a gigantic drilling machine for an expedition to the center of the earth.Scientists use a gigantic drilling machine for an expedition to the center of the earth.

  • Director
    • Terry O. Morse
  • Writers
    • Millard Kaufman
    • Dalton Trumbo
  • Stars
    • Bruce Kellogg
    • Otto Waldis
    • Jim Bannon
  • See production info at IMDbPro
  • IMDb RATING
    4.2/10
    1.5K
    YOUR RATING
    • Director
      • Terry O. Morse
    • Writers
      • Millard Kaufman
      • Dalton Trumbo
    • Stars
      • Bruce Kellogg
      • Otto Waldis
      • Jim Bannon
    • 64User reviews
    • 24Critic reviews
  • See production info at IMDbPro
  • See production info at IMDbPro
  • Photos520

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    Top cast9

    Edit
    Bruce Kellogg
    Bruce Kellogg
    • Wright Thompson
    Otto Waldis
    Otto Waldis
    • Dr. Max A. Bauer
    Jim Bannon
    Jim Bannon
    • Andy Ostergaard
    Tom Handley
    • Dr. James Paxton
    Dick Cogan
    Dick Cogan
    • Dr. George Coleman
    George Baxter
    George Baxter
    • Carlisle Foundation Chairman
    Marilyn Nash
    Marilyn Nash
    • Dr. Joan Lindsey
    Victor Kilian
    Victor Kilian
    • Dr. Jeremiah Morley
    • (uncredited)
    Harold Miller
    Harold Miller
    • Carlisle Foundation Board Member
    • (uncredited)
    • Director
      • Terry O. Morse
    • Writers
      • Millard Kaufman
      • Dalton Trumbo
    • All cast & crew
    • Production, box office & more at IMDbPro

    User reviews64

    4.21.4K
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    Featured reviews

    4ajaverett

    "Journey to the Center of the Earth" meets "The Core"

    Well, to be fair, in 1951, there was still a great deal of conjecture about the Earth's inner structure; not only was the theory of "plate tectonics" completely unknown (it's no longer considered a theory), that the core was a viscous super-heated liquid with a solid center (outer core and inner core) was merely a conjecture (today it too is considered fact). This picture strikes me as a sort of "Journey to the Center of the Earth" (1959) meets "The Core" (2003), with perhaps a little more emphasis on the latter.

    What was surprising was to see that the credit for music went to Ernest Gold (who appears to have scored a number of forgettable pictures earlier in his career). Gold would go on to score "The Young Philadelphians " (1959), "On the Beach" (1959), "Inherit the Wind" (1960), "Exodus" (1960) and "It's a Mad, Mad, Mad, Mad World" (1963); he won an Oscar for the score to "Exodus." Words were added in 1961 by Pat Boone(!) as "This Land Is Mine." Various versions charted in 1961, including by the piano duo Ferrante & Teicher and Montavani. It still can be heard today on radio stations that program older popular music.
    6arfdawg-1

    Better than you'd think

    This is not as bad a picture as some of the other reviews suggest.

    I'm not saying it's a great movie, but it IS surprisingly well done for being made with no money.

    It's an odd movie in that it's not really the kind of sci fi you'd expect. There are no monsters or other creatures.

    It a straightforward story about finding a alternative place to live in case of nuclear war.

    It does drag a bit, but it's worth a watch.

    The plot.

    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.
    youroldpaljim

    Serious but indifferently acted and sluggish sci-fi.

    As with ROCKETSHIP XM, Irving Block, Jack Rabin and the Lippert Company were trying to make a serious science fiction film with something to say. To the films credit, UNKNOWN WORLD is not exploitive or stupid as Rabins and Blocks next film ,CAT WOMEN OF THE MOON was. Years before I first saw this film, I owned a still of the drilling machine that takes the cast to center of the Earth and found it rather interesting looking. Its not bad looking in the film, and the scenes of it drilling into the Earth are of some visual interest. However, the film is just to lethargic and indifferently acted too be of interest to anyone other 1950's science fiction buffs. The trip to the center of the Earth is just to slow going.
    Kevin-278

    Not as bad as I would have liked

    I thought that this would be a typical "lost world" type movie. A bunch of people set out on an adventure to find a hide away from the threat of nuclear war by drilling deep into the earth...sounds similar to a lot of other story lines. Problem is that with effects of this style (not too bad for the time), and acting this bad, I thought at least we would get a cave man or a cheap dinosaur. No, they just keep going deeper and deeper, losing members of the team as they go. It also ends so abruptly that you think the writer just gave up.
    7thegalaxybeing

    Definitely worth a look

    First off, this story is loaded with scientific inaccuracies, the acting is somewhat inconsistent and the premise itself is rather preposterous. However, I found this film addictive and have watched it on a reasonably regular basis. You have a group of people, who decide that the threat of human annihilation is SO likely, it's worth the expense and risk to seek refuge deep in the bowels of the earth. This is all explained in detail in a rather convincing faux newsreel that immediately follows the opening credits. Soon, our less than harmonious crew of seven is locked together in the confines of a tunneling vehicle (called a Cyclotram) headed deep into the earth's interior completely cut off from civilization. There was animosity among some members to begin with, and now stuck together in the not–so-roomy vehicle, patience is predictably thin. Although, the science is off, the crew encounters adversities that are more realistic then most movies of this type. Such things as water shortages, UN-breathable pockets of gas, falling, boiling hot steam and indeed separation from humanity are the enemies they face. This isn't "action adventure" type science fiction, it's more drama based. Don't look for giant lizards or monsters. What makes this movie work for me is its overall dark mood. The dim photography, the music, the character's overall moods and the almost complete lack of any indigenous animal life creates a very melancholy atmosphere. I think the film does an excellent job of conveying the crew's loneliness and uncertainty. It's low budget only intensifies the somber feel. The crew even has a conversation about how their moods are changing (apparently from isolation). Because of all this, when they do discover something that seems to bring a little hope, you almost share their sense of invigoration. I wish this film would get a remastering and a decent release. Ironically the VHS version is far superior to the present DVD. For instance, the DVD is missing the first 12 seconds of the opening credits, including the entire "Lippert Pictures, Inc. Presents" and a bit of the title shot. Also the film is so poorly cropped that Marilyn Nash's name lies almost out of sight hidden the the bottom of the frame. Letters are also cropped off at the right. The newsreel has so many breaks that quite a few of the announcer's words are cut out. If you still own a VCR, it's actually worth picking up a VHS copy. You'd notice that on VHS the credits and newsreel are very much intact and the whole movie is a much better viewing experience.

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    Related interests

    Still frame
    Adventure
    James Earl Jones and David Prowse in L'Empire contre-attaque (1980)
    Sci-Fi

    Storyline

    Edit

    Did you know

    Edit
    • Trivia
      This project was actually put together by two special effects men, Jack Rabin and Irving Block, who are listed as producers.
    • Goofs
      The "science" regarding the interior of the earth is wrong, and was known to be wrong at the time the movie was made. It does not get cooler the deeper one goes into the earth. A few feet below the surface the ground temperature is around 50 degrees Fahrenheit. Going deeper from that depth the temperature goes up at a rate of approximately 1 degree Fahrenheit per 70 feet.
    • Quotes

      Dr. Jeremiah Morley: I believe that humanity can escape annihilation, can find a temporary haven, a promise of hope that, come what may, life can be sustained deep within the Earth itself. Far below the Earth we shall seek a natural, a geologic shelter. We have a team ready for the effort. All we lack are funds.

    • Connections
      Featured in Victor Kilian: A Blacklist Legacy (2025)

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    FAQ14

    • How long is Unknown World?Powered by Alexa

    Details

    Edit
    • Release date
      • October 26, 1951 (United States)
    • Country of origin
      • United States
    • Language
      • English
    • Also known as
      • Night Without Stars
    • Filming locations
      • Carlsbad Caverns National Park - 727 Carlsbad Caverns Highway, Carlsbad, New Mexico, USA
    • Production company
      • Lippert Pictures
    • See more company credits at IMDbPro

    Tech specs

    Edit
    • Runtime
      • 1h 14m(74 min)
    • Color
      • Black and White
    • Aspect ratio
      • 1.37 : 1

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