This is almost certainly a fake. The most obvious reason is that the camera trails behind the UFO, even though it isn't moving very fast within the
camera's field of vision. I know I'd sure as heck want a good, clear, and centered shot of an alien spacecraft.
I started laughing when I saw the video. I thought it was a minature scene and that was a fake UFO, almost from the early 50s...but I am no expert!!!
It's just entertaining to me!