SeaWorld denounced "Blackfish," a documentary that examines how the Orlando marine park's giant orca came to kill his trainer in 2010, calling the film "inaccurate and misleading."
SeaWorld trainer Dawn Brancheau and Tilikum, a killer whale, delighted audiences when they performed together, but their human-and-animal interaction ended on Feb. 24, 2010, when the orca pulled Brancheau into his tank and killed her.
Watch the full story on "Nightline" Friday, July 19 at 12:35 a.m. ET.
A main focus of "Blackfish" is answering the questions that have persisted for the past three years about what led the 12,000-pound, 22-foot killer whale to behave in such a way, killing Brancheau, a woman who was remembered as one of the most gifted trainers at the Orlando, Fla., theme park. It also raises questions about whether killer whales should be kept in captivity.
