Re: No planes, no passengers.
Well, After spending a lot of time watching the various productions this one doesn't convince me, but it is certainly a possibility that it was a missile. It looks like a real (probably remote controlled) plane to me.
If you wanted to analyze it professionally then you take it apart pixel by pixel in a methodical way with intense graphic programs that would be able to detect a fraud or manipulations with accuracy. I mean anyone with common sense can see that against the sky, the plane would look darker than it, and from another angle (underneath) the wings would reflect light. Common optical effects. Light or dark "color" is in relationship to reflection and the angle and the background. This should be obvious and makes any serious considerations of the material unlikely. That does not mean that it wasn't manipulated graphically on the news footage or that it wasn't a missile. This just isn't the quality of production that will get any serious notice on that point.
It's hardly the point whether it was a plane or a missile that hit the towers. It's obvious that there was manipulation of the plot (even if it was actually executed by Muslim extremists) and a massive yet unconvincing cover up to the skeptical veiwer.
I wasn't there so i can't pretend to be sure of anything. Just giving feedback and adding my 2 cents worth.