Considered the most iconic Bigfoot footage ever taken, this clip (which starts getting good around 0:21) was filmed by Roger Patterson and Bob Gimlin in 1967. While most scientists have concluded that the film shows a man wearing an ape suit, and several witnesses later claimed Patterson was a con-man, many remain convinced that the footage shows something non-human.
If it is a suit (and it probably is), it's a pretty good one! This Bigfoot has a confident stride, looking casually over his shoulder, like, "Whatever," while maintaining a consistent walking speed. He has places to be! But the same thing that makes the video famous — the clarity and length of view — is also its shortcoming: there isn't much drama or mystery here; it seems just a little too good to be true.