Fake

So, with it being 2012 and all, there are sure going to be a lot of UFO hoaxes going around. Also, there are people who are clearly having a lot of fun with CGI and trolling YouTube...and have been really successful. The people in the comments of this example are victims of trolling when they (supposedly) think they're the ones actually doing the trolling. Meaning, they think they've got the person's goat with pointing out the obvious truth that it's a fake UFO video.

... ....A+ guys, you figured it out, it IS a fake video!! Congratulations!