The myth unraveled in 1982 when CBC Television’s investigative program The Fifth Estate ran Cruel Camera. Reporter Bob McKeown traced the lemming sequence to the Bow River near Canmore, Alberta, showing that a small cage of lemmings had been transported to the site, jostled on turntables to simulate a migrating mass, and repeatedly shoved off a cliff to create the illusion of mass suicide. McKeown also revealed that a purportedly 'natural' shot of a polar bear cub tumbling down an ice slope had been shot in a Calgary film studio. Freelance wildlife cameraman James R. Simon—who worked for Disney on multiple True‑Life Adventure shorts—is credited with staging the lemming shots; the Walt Disney Family Museum later stated Simon acted without the knowledge or approval of Walt Disney or studio executives. The exposé forced a reckoning about ethics in nature filmmaking, discredited the lemming‑suicide trope, and left White Wilderness as a cautionary example of how cinematic tricks can create enduring biological myths and ethical controversies about animal treatment on set.
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