Emily and Sarah Kunstler have made a documentary about their father. William Kunstler: Disturbing the Universe tells the story of a man both beloved and written off as a publicity hound. Emily and Sarah join us to talk about their film and their production company, Off Center Media, explaining that their father understood the courtroom as a stage, and used his celebrity status--as well as that of allies like Henry Belafonte--to bring attention to causes about which he cared deeply.