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Unknown World

  • 1951
  • Approved
  • 1h 14m
IMDb RATING
4.2/10
1.6K
YOUR RATING
Bruce Kellogg and Marilyn Nash in Unknown World (1951)
Watch Official Trailer
Play trailer1:18
1 Video
99+ Photos
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
    1.6K
    YOUR RATING
    • Director
      • Terry O. Morse
    • Writers
      • Millard Kaufman
      • Dalton Trumbo
    • Stars
      • Bruce Kellogg
      • Otto Waldis
      • Jim Bannon
    • 70User reviews
    • 25Critic reviews
  • See production info at IMDbPro

    • Videos1

    Official Trailer
    Trailer 1:18
    Official Trailer

    Photos520

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    + 513
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    Top Cast10

    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)
    Bob Steele
    Bob Steele
    • Morley
    • (uncredited)
    • Director
      • Terry O. Morse
    • Writers
      • Millard Kaufman
      • Dalton Trumbo
    • All cast & crew
    • Production, box office & more at IMDbPro

    User reviews70

    4.21.6K
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    Summary

    Reviewers say 'Unknown World' Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum. Curabitur pretium tincidunt lacus.

    Nulla facilisi etiam dignissim diam quis enim lobortis scelerisque
    Lorem ipsum dolorSit amet consecteturAdipiscing elitSed do eiusmodTempor incididuntUt labore et doloreMagna aliquaUt enim ad minimVeniam quisNostrud exercitation
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    Related interests

    Still frame
    Adventure
    James Earl Jones and David Prowse in Star Wars: Episode V - The Empire Strikes Back (1980)
    Sci-Fi

    Storyline

    Did you know

    • 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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    Details

    • 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

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

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