The documentary Blackfish uses a mixed style combining interviews, observations, and narration to advance its argument about the mistreatment of orca whales in captivity. It explores themes of death, captivity, entrapment, suffering, and the concealing of truth regarding orca whales held at SeaWorld. Through the use of various camera techniques, editing choices, sound design, and archive materials, the documentary aims to show the poor conditions orca whales face in captivity at SeaWorld and how this negatively impacts the whales.