Blame! Movie

Zuru, a young girl, leads an expedition through a post-apocalyptic city where machines dominate, in search of food. Her team inadvertently triggers the Safeguard, the city's AI defense, and they're attacked by machines. Killy, a man from deep beneath the city, arrives and kills the hostile units, but Zuru remains skeptical of his intentions. He has been searching for humans with the Net Terminal Genes, a trait necessary for humans to regain control of their civilization and disable the Safeguard.