Blackfish is a compelling documentary that examines the captivity of killer whales in marine parks, focusing on the story of Tilikum, a captive orca involved in several fatal incidents. The film explores the ethical implications of keeping these highly intelligent and social creatures in captivity, highlighting the physical and psychological impact it has on them. Through interviews with former trainers and experts, Blackfish raises important questions about animal welfare and the ethics of using marine mammals for entertainment purposes. It serves as a wake-up call to reconsider our relationship with these majestic creatures and the need for their protection in the wild.