Do you find human prehistory and evolution fascinating?
Why aren’t there more books/movies about this? Quest for Fire is the only one that comes to mind.
Everything else that has been made has been farcical caveman schlock; One Million Years BC, Clan of the Cave Bear, 10,000 BC (which admittedly had some great creatures and costumes/set design/locations.)
We need an authentic, historically accurate film about early man, preferably with plenty of megafauna and breathtaking scenery.