Unknown World poster
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Unknown World

4.419511h 14mNRMovieAdventureScience Fiction

With the cyclotram, an atomic-powered rock-boring vehicle, Dr. Jerimiah Morley leads an expedition into a subterranean world.

DirectorTerry O. Morse
WriterMillard Kaufman
ProducersIrving Block·Jack Rabin

Where to watch

PhiloPhiloNight Flight PlusNight Flight PlusScreambox Amazon ChannelScreambox Amazon ChannelFlixFlingFlixFlingEternal FamilyEternal FamilyCultpixCultpixFull Moon Amazon ChannelFull Moon Amazon ChannelTroma NOWTroma NOWMidnight Pulp Amazon ChannelMidnight Pulp Amazon ChannelARROWARROWFawesomeFawesomeArtiflixArtiflixAmazon Prime Video Free with AdsAmazon Prime Video Free with AdsXumo PlayXumo PlayTubi TVTubi TV
Availability shown for United States · rights vary by country

Cast · Directed by Terry O. Morse

BKBruce Kellogg
Bruce Kellogg
Wright Thompson, Jr.
OWOtto Waldis
Otto Waldis
Dr. Max A. Bauer
JBJim Bannon
Jim Bannon
Andrew "Andy" Ostergaard
TH
Tom Handley
Dr. James Paxton
DCDick Cogan
Dick Cogan
Dr. George Coleman
GBGeorge Baxter
George Baxter
Carlisle Foundation Chairman
MNMarilyn Nash
Marilyn Nash
Dr. Joan Lindsey
VKVictor Kilian
Victor Kilian
Dr. Jeremiah Morley (uncredited)

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Unknown World — streaming FAQ

Which OTT platform streams Unknown World?

Unknown World is streaming on Philo, Night Flight Plus and Screambox in United States, and available to rent or buy on Amazon Video. It's not currently on Netflix.

Is Unknown World on Netflix?

No, Unknown World is not on Netflix in United States as of August 2026. It's currently on Philo and Night Flight Plus.

Is Unknown World on Amazon Prime Video?

Yes — Unknown World is included with an Amazon Prime Video subscription in United States as of August 2026.

Where can I watch Unknown World for free?

Unknown World is available to stream free (with ads) on Fawesome and Artiflix in United States.