That is pretty freaky. I haven\'t decided for myself whether it\'s a fake or not. Some of the problems people posted are:
1. After the object zips from behind the tower, the cameraman follows it. He gets it in frame, and then zooms OUT. Possibly because they "knew" the object was going to do a flyby maneuver next? Why else would you zoom out? To establish scale, or what?
2. When the object does the flyby, the helicopter engine noise drops down to nothing, and then gradually comes back up. I don\'t think this is a real problem, in fact it makes the film seem a little more realistic. If the camcorder has an auto record level circuit, then when the record level is briefly pegged, the apparent background noise would drop out and you would only hear the loud noise, whatever that is.
If it IS a fake, it\'s a difficult fake. Registering a digital object in the correct position with all the camera movement would not be easy.