Y'all have seen All About Eve, right? [Um, if you haven't, spoilers ahead.] It's a classic backstage story of a fame-hungry woman who decides that her best bet is to learn how to act. But not onstage - no, the real acting comes long before the first audition. First, she learns how to act like a desperate, devoted follower of a popular actress. Then, after she's gotten in close, she learns how to imitate that actress - with the added benefit of youth. The onstage stuff is just what follows naturally from that initial performance.
So Jennifer Lawrence. Gains notice in an arty romance flick, Like Crazy. Gets nominated for her performance in a grown-up indie drama, Winter's Bone. Goes huge as a kickass chick in a dystopian future with The Hunger Games. Is 23 years old.
So Shailene Woodley. Gains notice in an arty romance flick, The Spectacular Now. Gets nominated for her performance in a grown-up indie drama, The Descendants. And now maybe goes huge as a kickass chick in a dystopian future with Divergent. And she's only 22.
Anyway. Here's the final trailer for Divergent.