I watched this last week and it was okay. The music is awesome. I don't think they were able to explain or show more about the function of each faction more thoroughly. But the whole set-up seems like a scene out of high school: Abnegation-the popular kids, Erudite-the nerds, Candor-the class clowns, Amity-the regular kids and Dauntless-the jocks. And here you have Kate Winslet as the Sharpay who is out to get everyone who doesn't fit in the status quo.
I'm still not a big fan of Shailene though and seeing her with her brother seems a bit awkward knowing that in a few months we'll see her in a romantic relationship with him.
I might watch this movie again since I just won free movie passes