i'd have to agree with the comments in the video, a poorly done hoax
So you're calling me a liar?!
They took me in their spaceship and probed me! My [censored] hurt for a week after that damnit! :swear:
In all seriousness though:
UFO's-Likely just swamp gas reflecting off the light on weather balloons
Intelligent life other than on earth-possible
Not so intelligent life-most likely
Single cell organisms or bacteria-most definitely