This film is so awful it's brilliant.
The film is actually a re-edit of a Soviet science fiction film with extra footage of young American girls. Very low budget. The two sets of actors never actually meet.
All the voices are dubbed on afterwards. This covers up the fact that the astronauts are speaking Russian. The "Prehistoric women" communicate through thought waves, so none of them have to talk and act at the same time! I watched this on Sumo TV in the UK. The version I saw still had all the cinema adds spliced in. The adverts for ice cream, popcorn and hot chocolate were still there. There was also an advert for CocaCola.
The whole thing looks like someone had filmed the thing from the stalls on an old Cine camera. Picture blurred and fuzzy, colour almost bleached away.
Unfortunately none of the US actors ever went on to do anything of any significance. The leading lady, Mamie Van Doren, seems to have built her reputation around being a former Hollywood starlet who was supposed to be the next Marylin Monroe and spent five years dating Howard Hughes, from the age of 15! Directed by Peter Bogdanovich (Famous director and also Dr. Elliot Kupferberg in The Sopranos TV series)
Any prospective actor/producer/director should see some of this.