While the graphic violence against humans is simulated, the film's most disturbing and ethically indefensible element is its depiction of real animal cruelty. In several scenes, animals are killed on camera. These include a coatimundi, a giant river turtle, a tarantula, a boa constrictor, a squirrel monkey, and a muskrat. The muskrat is stabbed to death, the turtle is decapitated and its limbs are torn from its body as it writhes, and the coatimundi is shot. For many, these scenes cross a line from transgressive art to real-life animal torture. Director Ruggero Deodato defended the killings, stating that the animals were eaten by the cast and crew, just as they would have been in a real survival situation. "All the animals were eaten. They didn’t just die for the film," he told The Telegraph . While this may be true from a survivalist perspective, it does little to diminish the shock and revulsion modern audiences feel when watching these genuine moments of death play out on screen. Deodato later expressed regret over the decision, calling it his greatest mistake.

The film serves as a scathing critique of sensationalist journalism and Western media imperialism. It famously asks the unsettling question: "Who are the real cannibals?" By forcing viewers to question the authenticity of what they see on screen, Cannibal Holocaust laid the narrative groundwork for modern mockumentaries and psychological horror.

utilized a "film-within-a-film" structure. The plot follows an anthropologist who recovers footage left behind by a missing documentary crew in the Amazon rainforest. The raw, shaky camera work and naturalistic acting were so convincing that many viewers—and authorities—believed the on-screen deaths were real. Legal Controversy and "Snuff" Allegations

When viewed in context, the film can serve as a powerful commentary on the dangers of colonialism, the exploitation of indigenous cultures, and the impact of violence on individuals and society.

The legal troubles were just the beginning of the film’s journey toward infamy. Cannibal Holocaust was banned in more than 50 countries worldwide, a record for any film that doesn't involve a political coup d'état.