Voyage to the Prehistoric Planet (1965)
US edited version of a Russian Sci-Fi movie about astronauts and their robot, John, exploring the planet Venus and its prehistoric lifeforms. Former SHERLOCK HOLMES Basil Rathbone and Faith Domergue of THIS ISLAND EARTH star in this fantastic tale set in 2020.
Toyland Chairman commented
Wrong movie. Here: https://archive.org/details/VoyagetothePrehistoricPlanet_iPod
Watch the full movie at archive.org: https://archive.org/details/VoyagetothePlanetofPrehistoricWomen