Jurassic Women

Two astronauts on a space mission find themselves a wormhole and are dragged to it to another planet where the sexes are at war with each other. The men are these troglodyte types and they have good martial arts skills. They capture our two travelers, but then the two are rescued by the women who are warriors and hunters, but also wonder of wonders speak a fluent English.

God knows how this evolved but though we learn these people have some long lives and stay looking young they do die eventually. And this situation is certainly not going to increase the population. Some breeders are definitely needed and at least one of the astronauts is willing to do his share.

The only actor you will know in this monstrosity called Jurassic Women is Jan-Michael Vincent who plays some kind of forest guru and look ridiculous doing it. In keeping with a tradition established by all those B westerns back in the day, the title has nothing to do with the film. There's not a dinosaur in sight.

Lots of scantily clad female flesh is all this one has going for it.