Alison Brie plays an anti-hero (she's the problem, it's her) in "Somebody I Used to Know," a thorny romantic comedy about moving on, falling apart and letting go, sometimes not in that order.
Brie is Ally, a reality TV producer in Los Angeles who is barely scraping by — her trash-tastic reality series "Dessert Island" has just been canceled after three seasons — but to her friends in family back in Leavenworth, Washington, she's the hometown girl made good.
When she returns home ostensibly to visit her mom but really to get away from it all, she runs into her ex-boyfriend Sean (Jay Ellis) at a bar. They hit it off and have a magical day and night together, talking until the wee hours. But there's palpable awkwardness the next morning, and when Ally drops by Sean's family home to see what's up, she finds out why: Sean is about to get married.