"Low hanging fruit," complains Matt Freehauf (Patton Oswalt) to visiting home town girl - or visiting "psychotic prom queen bitch," depending on your point of view - Mavis Gary (Charlize Theron), as the two go about their sparring, if not unlikely friendship in Young Adult , the second collaboration of director Jason Reitman and writer Diablo Cody. This after their wildly successful Juno in 2007. Mavis, going through something of a pre-midlife crisis, has returned to her old stomping grounds of Mercury, Minnesota to reclaim former boyfriend Buddy Slade. Never mind that Buddy is by all accounts a happily married man, or that his first child has recently appeared on the scene. In fact, it's the arrival of her old flame's baby, whose picture Mavis retrieves from her e-mail in box one day during a bout of writerly procrastination that ultimately inspires Mavis to jump in her Mini Cooper and speed out of Minneapolis in favor of her hometown, a place Mav...