Thanks for the post. I had not seen this before. All I can say is "WoW!".
That is quite amazing. I spent about a year learning to fly a RC heli. This was back before the computerized transmitters. I spent a small fortune on tail booms and rotor blade before I got it down to the point I could fly around in a "normal" fashion. That was as good as it got. That movie is amazing! I had no idea that a heli could even do that.