(Hoax) Bigfoot June 6 1966 Footage
This film was supposedly shot according to the details from the YouTube page below by a Dr. J. Schreck. It is nothing more than a hoax where someone used old film filter to make it look like it was made in the mid-60's. It also uses a popular costume for the Bigfoot.
1 year before Patterson captured his bigfoot on film the creature was captured on film by a man who chose conservation over fame, see this remarkable film. Travel with Dr J. Schreck to the area where he believes this film was shot.
The Costume used: