In a post-Juno world, director Jason Reitman and screenwriter Diablo Cody have re-teamed for a much darker spin on inappropriate maturity levels and their inevitable consequences. Whereas their hamburger phone-chatting, bon mot-spouting teen Juno was almost too mature for her own good, their latest heroine is undoubtedly too immature to even be considered a real adult. In Young Adult, Charlize Theron plays Mavis Gary, a YA author who has much more in common emotionally and intellectually with her characters than she does with anyone her actual age. Mavis heads back to her small hometown, still gorgeous as ever, but with a real chip on her shoulder (to put it mildly). Mavis wants her high school sweetheart back (Patrick Wilson), and she doesn’t care if he’s married, and she doesn’t care if she’s a real bitch to everyone else, and she just…well, she just doesn’t care. Check out the first trailer for Young Adult after the break, with bonus Patton Oswalt as one of Mavis’ former classmates who is also a bit stuck in the past.