Voyage to the Planet of Prehistoric Women is a 1968 science fiction film directed by Peter Bogdanovich. The film is an adapted version of Curtis Harrington's Voyage to the Prehistoric Planet, which in turn is adapted from the Russian 1962 feature Planeta Bur by Pavel Klushantsev. No footage from Planeta Bur appears in Voyage to the Planet of Prehistoric Women that did not appear in Voyage to the Prehistoric Planet, and the dubbing is the same. In the United States, this film is in the public domain.
(Summary from Wikipedia)
Copyright Info: This movie is in the public domain and is legally available for free on YouTube.