Upon arrival to Venus, cosmonauts find furious volcanoes and sundry prehistoric beasts in Klushantev's film, based on a novel by the Soviet sci-fi writer Aleksandr Kazantsev. Footage has been recycled in three Corman productions Voyage to the Prehistoric Planet, Queen of Blood, and Voyage to the Planet of Prehistoric Women (the directorial debut of Peter Bogdanovich).　　83mi