To me it looks like two separate shots, the sky and the urban view, put together in one. In other words, it doesn't seem genuine. However the idea isn't bad.
P.S. I'm pretty sure you can only get the circular drawing of the stars from either of the poles - the rotational anchor points of the Earth, that way it would be logical to see the stars spin round.
What are the four layers or steps that were used in every shot of this video to achieve such beautiful color? I would appreciate it Soo so so much! :)