Actress and stunt double Cecily Fay has informed me that Kristen Stewart is ok, that her injuries were very minor and filming has resumed on Snow White and the Huntsman. She said she was actually with her at the time of the injury. Snow White hits theaters June 1st 2011! Chris Hemsworth from Thor plays the huntsman and Charlize Theron plays the Evil Queen!
An official website has been set up and you can see the three main characters in their costumes!