"Blackfish" is a 2013 documentary film directed by Gabriela Cowperthwaite that takes a critical look at the treatment of killer whales in captivity, specifically at SeaWorld parks. The film is a compelling and heart-wrenching examination of the impact of captivity on these intelligent, social animals.

The documentary tells the story of Tilikum, a captive orca who was responsible for the deaths of three people, including SeaWorld trainer Dawn Brancheau. Through interviews with former SeaWorld trainers, marine biologists, and animal rights activists, "Blackfish" presents a powerful case against the captivity and mistreatment of these majestic creatures.

One of the strengths of the film is its use of actual footage from SeaWorld shows and training sessions, which shows the physical and emotional toll that captivity has on these animals. The film also raises important questions about the ethics of keeping animals in captivity for entertainment purposes.

As a viewer, "Blackfish" is difficult to watch at times, as it highlights the horrific conditions that these animals are subjected to in order to perform for crowds. The film is also a call to action, as it encourages viewers to reconsider the way that we treat animals in captivity and to take a stand against the exploitation of animals for entertainment.

"Blackfish" is a well-crafted and impactful documentary that raises important questions about the treatment of animals in captivity. It is a must-watch for anyone who cares about animal welfare and wants to better understand the ethics of keeping animals in captivity for entertainment purposes.