Thanks to memorable performances in Juno and The Wackness, Olivia Thirlby has quickly become an indie flick It Girl. Now, Olivia's starring in her darkest role to date in What Goes Up. Get this stylish and sassy star's take on co-star Hilary Duff, the '80s fashion resurgence, and more!

How did you get into your What Goes Up character? She's pretty dark.
The physical transformation is always a big part of feeling like you're in somebody's shoes. I dyed my hair black, I armed myself with many eyeliner pencils and some combat boots and a trench coat, and that did it. Tess is an artist, so I spent a lot of time drawing. I felt like she'd write poems, so I'd spend my time when I wasn't shooting in my trailer drawing and writing sad poems.

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