rodeo cowboy roger patterson is deep in the woods with his 16-millimeter camera. >> roger was a bigfootas going to go out and film bigfoot. >> known as bigfoot in north america, yeti in asia, and sasquatch in canada, the infamous creature has reportedly been spotted all over the world. yet evidence of the beast is scarce until this film becomes a worldwide sensation. >> you're seeing in the patterson film, bigfoot shows up on cue. the creature is walking along a creek bed, making what i think are exaggerated steps, exaggerated gait. turns, looks at the camera, and is gone. the patterson film was put out as here's the proof -- here's proof that bigfoot exists. >> the film awes believers and fascinates nonbelievers. >> the believers were prepared to believe it, no matter what it showed. they were going to believe it. and skeptics would be dubious about it. >> i'm sitting in my living room at home watching television and the announcer comes on telling a story about these two rodeo cowboys who were out in the forest and ran upon a bigfoot. and i'm looking. here's our gorilla suit walking ac