2MuchMark

The question to ask is: Are they alien spacecraft? Or are they something else?

Since there is no physical evidence, only photographic, the chances are is that it is not alien for a few reasons:

#1. Something moving that fast through air would make a lot of noise as it pushed the air out of its way while it moved, and would probably be a lot brighter as all that friction would have generated heat.

#2. The way it moves is impossible with the sharp turns, etc. To be able to move and turn like that would require lots of energy to accelerate and decelerate. Just to dump all the energy contained in its momentum alone would create both visual and audio artifacts.

Of course, UFO believers would claim alien technology to explain all of this, and then more stuff to back that claim up, etc etc. You can't win with a UFO belieber.

Could it have been faked? Of course. The people on the corner could have been friends of the filmmaker. The UFO's could be Computer generate effects or maybe even practical effects.

THere's just nothing convincing in this video.

Bingo.