My recollection is very sketchy but this is what I remember....
- Film was possibly black and white
- I saw it as a child in the late '80s early '90s but it's older
- It was subtitled and in Russian or similar language
- It involved some astronauts travelling in space with possibly time travel
- The astronauts (mostly men) encounter a planet/civilization of only women
- The women no longer need men to breed and are so become superior and possibly want to eliminate all men
That's all I have to go on, sorry.