In a prison for the criminally insane, deranged anthropologist Ethan Powell is set to be examined by a bright young psychiatrist, Theo Caulder. Driven by ambition and a hunger for the truth, Caulder will eventually risk everything—even put his very life on the line—in a harrowing attempt to understand the bizarre actions of this madman.
Acting
Hopkins grunting and lunging—completely unhinged commitment
Writing
The 'what did you do?' scene—brutal dialogue economy
Director
Jon Turteltaub
Trivia, insights & behind the scenes
Loosely inspired by Dian Fossey's work and the controversial 'human rewilding' theories of the 90s eco-movement.
The gorilla scenes used both suits and real apes—Hopkins spent weeks studying movement with primatologists, refusing most CGI-era shortcuts.
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