Nadine (Hailee Steinfeld) is a bit of an oddball, but her adolescence is survivable because she has her awesome best friend. But when her BFF suddenly starts dating her older brother, Nadine has a series of social (and social-media) crises, and melts down. Humorously, of course, because writer-director Kelly Fremon Craig’s coming-of-age tale is a lively comedy. It’s contrived from start to finish — and sure, it’s hard to truly feel sorry for such a bright, smart, attractive young woman with a huge slate of life’s advantages, but such is our story. (And that’s how real-life self-absorbed teens can roll.) Steinfeld gets great assists from Hayden Szeto, who plays the stammering (but secretly cool) polite nerd who is crushing on her, and Woody Harrelson, who portrays the exasperated teacher in whom Nadine confides. It all resolves in a positive fashion without being mean, which isn’t a bad thing these days. Starts Fri., Nov. 18.