Flying Humans Spotted Over New York
In this era of ever more special movie special effects, it seems defying the laws of physics is now passé. However, here we have a noteworthy real world instance of life imitating (dare I say improving upon) art. As you've already guessed (I hope) this was a clever use of ingenious remote control drones that look like humans, at least from a distance. The synthetic flying humans are not mere kites either, they are fully controllable powered aircraft - very impressive.
The stunt was all in the name of promoting the new film Chronicle in which, you guessed it, the main protagonists discover they can fly. Didn't Superman prove you can fly in the movies already?