Blackfish is a 2013 American documentary film directed by Gabriela Cowperthwaite. It concerns Tilikum, an orca held by SeaWorld and the controversy over captive orcas. The film premiered at the 2013 Sundance Film Festival on January 19, 2013, and was picked up by Magnolia Pictures and CNN Films for wider release. It was nominated for the BAFTA Award for Best Documentary. The documentary concerns the captivity of Tilikum, an orca involved in the deaths of three people, and the consequences of keeping orcas in captivity. The coverage of Tilikum includes his capture in 1983 off the coast of Iceland and his purported harassment by fellow captive orcas at Sealand of the Pacific. Cowperthwaite argues these incidents contributed to the orca's aggression. The film includes a testimonial from Lori Marino, director of science with the Nonhuman Rights Project. Cowperthwaite also focuses on SeaWorld's claims that lifespans of orcas in captivity are comparable to those in the wild, typically 30 years for males and 50 years for females, a claim the film argues is false. Other people interviewed include former SeaWorld trainers, such as John Hargrove, who describe their experiences with Tilikum and other captive orcas. The documentary argues that the wild-caught orcas experienced extreme stress when captured as juveniles, and spending a lifetime in aquaria being forced to perform and breed lead to aggression toward other orcas and humans. The film features footage of attacks on trainers by Tilikum and other captive orcas as well as interviews with witnesses. Cowperthwaite began work on the film after the February 2010 death of Tilikum's trainer Dawn Brancheau and in response to the claim that the orca had targeted Brancheau because she had worn her hair in a ponytail. Cowperthwaite argued that this claim had been conjecture and that "there had to be more to this story". The film premiered at the 2013 Sundance Film Festival on January 19, 2013, and was picked up by Magnolia Pictures and CNN Films for wider release.