Blackfish 

Black fish is about killer whales that are kept in captivity. The focussed one this one whale named Tilikum , Tilikum measures 22.5 feet wand weights 12,000 tons. He was captured off of Iceland and was then sent to Victoria to be in a little pool with two other whales that were female they had to performance a show at Sealand. When the show was over the went in to this little cage that was 25 feet long and 30 feet wide, as they whales grow the cage was getting to smaller the females racked him. Racking is when whales use there teeth to scratch other whales. One day Tilikum was very upset and frustrated so one of the trainers was pulled in by Tilikum, Tilikum them killed the trainer. After that incident Sealand closed down. Seaworld herd Tilikum was for sale so they bought him. Seaworld Wanted tilikum so that he could breed with other females. One show tilikum noticed that the fish bucket was getting empty so he started getting upset and frustrated so when him and one of the trainers named dawn went to do a part of the show he graped her arm and pulled her in Tilikum killed dawn, Seaworld blamed dawn for the incident. It was almost twenty years about that tilikum killed the other trainer at Sealand. There have been over seventy killing incidents in captivity and 0 incidents in the wild.