Prehistoric Women (1967)

aka Slave Girls (a heavily cut UK vers.)

Rather than let the sets and costumes from their successful One Million Years B.C. (1966) film go to waste, HAMMER hastily made a follow-up. It has a campy kind of cave-girl charm, but the only truly memorable aspects are leading lady Martine Beswick and, better still, the eldest of the male slaves.
The male protagonist (Michael Latimer) would've earned my sympathies if he hadn't been introduced as a man who aids shit-bag big game hunters.
The story is even more ridiculous when written down than it seems onscreen, so I'll say only that it's about a tribe of dark-haired women who make slaves out of fair-haired women, all of whom are living under the shadow of a white rhino legend, and unlike OMY BC it has English language dialogue.

2½ unworthy eyes out of 5

One Million Years B.C. (1966)

Instead of simply dipping a toe in the cave-girl genre, Hammer dipped an entire lady, Raquel Welch, and created something iconic in the process.
It's a story of early humans (after they'd learned sewing and modesty) with very little dialogue, most of which is Prehistoric language. Despite that, it does manage to be entertaining, least of all in its good girl falls for bad boy scenario; i.e. Loana (Welsh) for the savage Tumak (John Richardson).
Lovers of 'fur' bikinis should enjoy the scenery, while kids and fans of stop-motion can appreciate the wonderful Ray Harryhausen creature effects. Beyond that, there's character growth, some righting of wrongs, and enough tragedy to enable anyone who's seeking an actual story to leave satisfied.

3 skulls on sticks out of 5