Filmmaker: Captivity bad for whales

ORLANDO, FL - MARCH 30:  Killer whale "Tilikum" appears during its performance in its show "Believe" at Sea World on March 30, 2011 in Orlando, Florida.  "Tilikum" is back to public performance March 30, the first time since the six-ton whale has performed since killing trainer 40-year-old trainer Dawn Brancheau at the marine park on February 24 2010, after Sea World Parks & Entertainment president Jim Atchinson signed off on the decision this week. (Gerardo Mora/Getty Images)

    Just Watched

    Filmmaker: Captivity bad for whales

Director Gabriela Cowperthwaite talks to Ashleigh Banfield about her CNN Films-produced documentary "Blackfish."