The movie is a total thriller. In the beginning, it looked like some human tester wants to train a smart rat to get out of a puzzle box, but in the end the audience found that the rat was so powerful to control everything, even the box. Actually, the box could be regarded as the metaphor of the world of human beings, and it was so vulnerable for a smart enough rat to ruin it.
So, I think the point of the movie is the evolution: that is, the robots would sooner or later replace the human beings. For us the humans, this is a tragedy; we do not like it but it seems unavoidable. Just like Nathan said in the movie: one day the AIs are going to look back on us the same way we look at fossil skeletons on the plains of Africa. Can we hold back the doomsday? No, I don't think so. What we can do may be to find some way to co-live, rather than to try to control them.
By the way, I have to say, the cyber-girl is much more sexually attractive in the form of a cyborg than a human being.
Compared to the tale-like movie "Eva", this one is much more realistic, thus much better, and much darker.
Nathan: One day the AIs are going to look back on us the same way we look at fossil skeletons on the plains of Africa. An upright ape living in dust with crude language and tools, all set for extinction.
Director/Writer: Alex Garland
Stars: Alicia Vikander, Domhnall Gleeson, Oscar Isaac