First post here, so be gentle eh?

I'd like to suggest that this could easily be both RC/Wire work and CGI.
At 38 seconds ( Second linked Vid ) the camera loses track of the "UFO" as it moves left out of frame and the camera jerks around.
Then once the camera reacquires the "UFO" it's already beginning to move off.
So at the point were the camera loses the "UFO" it would be easy to get the RC/Wire controlled model out of frame and continue filming. Then comp the "UFO" streaking off. It sounds a lot harder than it is.
I've actually done similar things before in school.

Just a thought.

P.S. Hi!