` Perhaps even more so for those who have never considered the issue . '' `` `` Blackfish '' '' examines the 2010 incident when a killer whale killed its trainer . the Sundance Film Festival explores history of orcas in captivity . The film received buzz from CNN Films . the Sundance Film Festival has acquired the release to air on 2010 .
`` `` Blackfish '' '' examines the 2010 incident when a killer whale killed its trainer . the Sundance Film Festival explores history of orcas in captivity . The film received buzz from CNN Films . the Sundance Film Festival has acquired the release to air on 2010 .