This movie left me incredibly confused at the end. I don't know if I missed something or if they just legitimately never explained it. The entire movie felt like just some random action movie that hinted at this great idea backing it but never actually made it around to that idea. It does a great job at making you feel like everyone fears the Divergents, but never goes into the why part of it.
What is so bad about being a divergent and why are the Erudites so keen on eliminating them all? What real threat do they pose to civilization that makes them so dangerous? Was it just that they can't be mind-controlled or was there more to it than that?