'Blackfish ' prompts school to cancel long-standing SeaWorld trip . Artists have fled from the calendar after CNN broadcast the documentary `` Blackfish '' It raises questions about the safety and humaneness of keeping killer whales in captivity . The film was released on Monday by animal rights group PETA.
Artists have fled from the calendar after CNN broadcast the documentary `` Blackfish '' It raises questions about the safety and humaneness of keeping killer whales in captivity . The film was released on Monday by animal rights group PETA.