This video attempts to set the record strait on the unfounded allegation involving a suspected glitch in CGI manipulation that caused the Boeing 767 aircraft wing to disappear behind a building that was OBVIOUSLY (to the observer) farther away than the south tower, itself.

I used Google earth to identify the building to verify that it (The Downtown Club) was much closer to the camera than the South Tower thus confirming there was no CGI glitch of the wing. Failure to identify the building caused the observer to interpret the effect of a telescopic camera lens that causes distant objects to appear disproportionately large.

The real proof of CGI actually exists as the fragile aluminum aircraft is seen to cut through steel and poured concrete flooring as a demonstration of magical cartoon physics.