By InStyle Staff
Updated Sep 21, 2012 @ 10:15 am
Nina Dobrev, Erin Wilhelmi, Perks of Being a Wallflower
Credit: Splash News; Getty Images; Courtesy Photo

Stephen Chobsky's much-anticipated The Perks of Being a Wallflower finally hits theaters tonight, and we spoke to stars Nina Dobrev and Erin Wilhelmi to get the inside scoop on just what went down during filming—on and off the screen. From '90s costume choices to working with Emma Watson for her first big American film (complete with a Pennsylvania accent!), click through to read what the actress's had to say about their new film.