Twentysomething writer-director-star Desiree Akhavan's shambolic shuffle through the wilds of bisexual Brooklyn earned her scores of comparisons to Girls creator Lena Dunham. It makes sense: Like Dunham, she has a kind of self-possessed swagger, a knowing command of her craft and a taste for WTF exhibitionism. But the Iranian, bisexual Akhavan is very much her own artist – with a polyglot urban voice that comes off like an unholy cross between Fran Lebowitz, Junot Diaz, Tina Fey and Hanif Kureishi. Hands down, Akhavan's Behavior was the festival's most ready-for-prime-time debut. —L.H.