• The 59-second 1967 Patterson-Gimlin Bigfoot film, seen by billions of people over the decades, is often cited by proponents as proof that the giant, hairy creature exists
• A new documentary — Capturing Bigfoot — uses recently unearthed footage to prove that the 1967 film was an “incredible hoax,” says director Marq Evans

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"After her father’s death,” says Evans, 43, “she’d found a canister of 16mm film that had been sealed away for over half a century. She needed help getting it developed and wondered if I might be interested in doing something with it.”

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Not long after receiving Brooks’ email, Evans had the 16mm film developed and days later found himself looking at a 40-second clip set in a location similar to the one in the 1967 movie, showing what appeared to be a slightly skinnier-looking Bigfoot walking into the woods.

“It took me maybe nine months to realize what we really had,” says Evans, who was able to determine, by markings on the film, that the footage had been shot in 1966, roughly a year before the now-famous clip in the 59-second Bigfoot movie was allegedly shot. “What we eventually found out is that [this new footage] represented a trial run, a rehearsal that was never discarded.”

Realizing he had physical evidence that finally put to rest the question of whether Patterson’s creation was a hoax, Evans knew he had the makings for an explosive documentary. He quickly went to work, he says, “connecting the dots” behind the making of the 1967 film and interviewing the cast of characters in Patterson’s hometown of Yakima, Wash., who were involved with its creation, including 80-something-year-old Bob Heironimus, who confessed to being the individual wearing the fake Bigfoot suit in the film.