Unknown World is a 1951 English-language Adventure Sci-Fi movie written by Millard Kaufman and directed by Terry O. Morse and produced by Irving A. Block, Jack Rabin and Robert L. Lippert. Dr. Jerimiah Morley becomes convinced that the world is headed to an inevitable worldwide nuclear war. He organizes an expedition made up of a team of expert scientists and an atomic-powered rock-boring vehicle called a cyclotram to find a subterranean environment where holocaust survivors could live indefinitely. When funding falls through, independently rich adventurer Wright Thompson underwrites the project under the condition that he be allowed to go. As the group goes deeper beneath the Earth's crust, personalities clash, tempers flare, and the dangerous journey claims the lives of several expedition members. When they come upon an enormous underground expanse with its own ocean and phosphorescent light, it appears that their goal has been achieved. Written by Gabe Taverney {duke1029@aol.com). Unknown world features Bruce Kellogg in the lead role along with an ensemble cast including Marilyn Nash, Jim Bannon, Otto Waldis, Tom Handley, Dick Cogan and George Baxter. The music was composed by Ernest Gold. Cinematography was done by Henry Freulich and Allen G. Siegler and editing by Terry O. Morse. The motion picture has a running time of 74 minutes. It was released on 26th October 1951. Distribution rights for the film were acquired by Lippert Pictures.