Doomsday Machine

A 1972 American science fiction film mostly filmed in 1967 under Herbert J. Leder's direction but completed years later without the original cast, costumes, or sets. Spies discover that the Red Chinese have built a "doomsday machine" capable of destroying the surface of the Earth, and plan to use it within days. The U.S. scrambles a mission to Venus, at the last minute replacing three male crew members with female ones to ensure repopulation. The film is notorious for its disjointed production history and marked Public Domain on Archive.org. Casey Kasem appears as the Mission Control Officer.