"Blackfish" is a documentary film released in 2013 that focuses on the life of Tilikum, a captive orca held at SeaWorld. The film explores the ethical implications of keeping such intelligent animals in captivity and highlights incidents of aggression, including the death of a trainer. The documentary presents interviews with former trainers and marine experts, revealing the psychological and physical effects of captivity on orcas. It raises awareness about the treatment of marine mammals in entertainment and has sparked discussions about the practices of marine parks like SeaWorld.