I haven't actually watched this yet- only just heard of it the other day, but this movie looks strangely interesting:
"In the distant future, the gargantuan blue humanoid Traags have brought human beings from Earth to the planet Ygam, where they maintain a technologically and spiritually advanced society. The Traags consider Oms animals, and while they keep some as pets, others live in the wilderness and are periodically slaughtered by the Traags, who wish to control their population."
https://en.wikipedia.org/wiki/Fantastic_Planet