Rainey Dawn I like a lot of the older, slower sci-fi films but this one is super boring. It's extremely drab, flat, one dimensional and nothing happens. It just them drilling and drilling for most of the film. The exciting thing that happens is when the finally pop out and see water. That's as exciting as it gets - they see water. OK there's a little bit more to the water stuff in the ending but by the time you get to that point your either asleep or just really don't care.If you are gonna watch the film, there is no need in watching it normally, just hit the fast-forward button and watch it that way because the dialogue is as interesting as the sock-lent between my toes.1/10

mark.waltz A group of scientists who seemingly can't stand each other take a trip into the core of our world, determined to find safe shelter in the event of a nuclear disaster. Fighting amongst themselves for much of the journey, they come together in joy with the discovery of drinkable water in the earth's crust and in tragedy when disaster occurs. This isn't really a typical science fiction film, often staid yet occasionally filled with some vital points. The discovery of a possible utopia brings on more joy, some amazing (fictional) scientific finds, bringing more questions than answers. Told through the perspective of the one female scientist, it ends up being a statement against the advancement of nuclear power, insisting that humanity couldn't survive a really strong blast. Low budget yet sometimes imaginative, it still never fully comes to life.

wes-connors "A scientist has a theory of saving mankind from a nuclear disaster by having people hide in the center of the Earth to avoid the contamination and devastation. With the financial backing of a multi-millionaire, the scientist develops a giant drilling rig and sets out to find the potential safe haven in the Earth's core. A harrowing trip through the Earth brings the explorers to a hidden cavern…" according to the DVD sleeve's synopsis. Blacklisted actor Victor Kilian (as Jeremiah Morley) leads the underground movement.The journey to the center of the Earth is made possible because our planet is mostly cool and hollow. After the six man/one woman crew finds an underground sea, you may agree they have found the "Promised Land" - but, wait until you see if reproduction can occur below sea level. In an unrelated subplot, arrogant Bruce Kellogg (as Wright Thompson) romances the world's weirdest "ardent feminist" doctor, Marilyn Nash (as Joan Lindsey). As you'll immediately discern, this pretty blonde never did get around to burning her bra.** Unknown World (10/26/51) Terry Morse ~ Victor Kilian, Bruce Kellogg, Marilyn Nash, Jim Bannon

azjimnson I think prints of this film must have been cheap to purchase for local TV stations. When I was growing up in the fifties, I must have seen this movie--or portions of it--at least once a month. It might have been more engaging when I was seven years old, but there is still something about it that makes it different than other fifties sci-fi. Perhaps it's the pacifist sentiments of the script, when, at the time, most popular entertainment was hyping the bright promise of our atomic future. Then again, it might be Marilyn Nash, who was quite beautiful, and in a modern way, rather than in that fifties bombshell way. Amazing that she went from being discovered by Charlie Chaplin to appearing in this low budget film in the course of a couple years. As to Victor Killian not be credited, his bio indicates he was black listed during the McCarthy years for his leftist political leanings. Perhaps those leftist views are why he does seem to bring a lot sincerity to his character's opposition to the direction of modern society depicted in the film's prologue.