More Emma Watson and Perks of Being a Wallflower news

A local Pittsburgh news station has picked up on the fact Perks of Being a Wallflower will be filmed in Pittsburgh. Stephen Chbosky is reported as saying that filming will begin around May 2011 at the earliest. Also a Pittsburgh film company, Bridge City Films, who has a representative visiting LA talked to an agent that confirmed Emma's involvement and also said filming will be early 2011.
From their twitter:
Just had a meeting with an agent who said Emma Watson is confirmed for Perks of Being a Wallflower. Starts shooting early 2011 in Pittsburgh