Unknown World (1951)

Dr. Morley (dubbed the Prophet of Doom by at least one newspaper reporter) is an obsessive opponent of all things nuclear. Fearing that atomic weapons will destroy all life on earth, he recruits a group of scientists for his Society to Save Civilization, and they make plans to find a living space deep within the earth where man can survive and rebuild from the nuclear holocaust they see just over the horizon. After the group fails to secure any funding, a rich newspaper publisher's son forks over the cash and accompanies them on their monumental journey. They design a cyclotram, basically a gr

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Where can I watch Unknown World for free?

You can stream Unknown World (1951) free and legally on OldReel, via the Internet Archive.

Is Unknown World in the public domain?

Yes — it is in the public domain and can be watched and shared freely.