Watch Unknown World (1951): stream Unknown World (1951) on Philo, YouTube TV, Artiflix. Compare all streaming options for this movie on WhereCanIWatch.tv.
Unknown World
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You can watch Unknown World (1951) for free on Artiflix.
With the cyclotram, an atomic-powered rock-boring vehicle, Dr. Jerimiah Morley leads an expedition into a subterranean world.
Subterranean shadows and low-budget atomic wonder define this claustrophobic journey into the earth's core. A drilling machine carries a desperate crew toward a strange, hollow civilization hidden beneath the crust.
Director
Terry O. Morse
Cast
Bruce Kellogg, Otto Waldis, Jim Bannon, Tom Handley, Dick Cogan, George Baxter, Marilyn Nash, Victor Kilian
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Last verified 29 days ago
Unknown World
You can watch Unknown World (1951) for free on Artiflix.
Director
Terry O. Morse
Cast
Bruce Kellogg, Otto Waldis, Jim Bannon, Tom Handley, Dick Cogan, George Baxter, Marilyn Nash, Victor Kilian
12 options ranked by value · 🇺🇸 United States
Keep browsing: New Releases · Popular Movies · Adventure · Science Fiction
cave · exploration · scientific expedition · tunnel · underground lake · subterranean world · underground cavern · woman scientist · poison gas
Unknown World is streaming on Philo. Unknown World is streaming on YouTube TV. Watch Unknown World for free on Artiflix. Watch Unknown World for free on Fawesome. Unknown World is streaming on ARROW. Unknown World is streaming on Cultpix. Unknown World is streaming on FlixFling. Unknown World is streaming on Full Moon Amazon Channel. Unknown World is streaming on Midnight Pulp Amazon Channel. Unknown World is streaming on Night Flight Plus. Unknown World is streaming on Screambox Amazon Channel. Unknown World is streaming on Troma NOW. Availability last verified June 21, 2026.