BW’s Morning Article Link: Batgirl Joins The Avengers?

I know some of you have already heard about this but I’m low on links for today, so this is for those who haven’t. One of the next planned DC movies will star Batgirl. The interesting thing is the director, Joss Whedon, who has previous worked on the Avengers movies for Marvel. I wonder what he’ll bring to the table, and how dark DC/Warner Brothers will force him to go?