Also, the tail section of AA flight 77 should have been mostly white (more the like the color of the smoke trail), yet the "tail" in question is dark and is more consistent with the background treeline.
The sharp vertical edge seen above is the result of distortion (even if it was flight 77) as the tail section of a Boeing 757 is slanted in the rear.
There are two sets of footage in the video.
If we look at the first close-up, the same plane shaped object can also be seen: -
There is no plane in the left frame, there is a plane in the right frame.
It helps to flick back and forward between these two frames at 0:18 - 0:19 in the video to see what appears.
The plane fuselage is visible, the same tail section can be seen (though lower in the treeline in this footage), along with the smoke which originates from the wing area.
Regarding colour of the plane - the Pentagon facade is a light colour also but appears dark in the video.
Regarding slant of the tail - remember the plane is not coming in at a right-angle to the building but at approximately 50o which would reduce the slant visible.
I have also seen analysis of this footage concerning location of the object and distance from the camera - conclusion, the plane is of correct size and dimensions to match a 757.
Then consider the downed light poles on approach, requiring a 757 equivalent wingspan to impact… the debris matching that of a 757 at the site (there’s more than appears at first glance)… the 100+ eyewitnesses, many of whom saw the final approach and even impact… consider that those who carried out 9/11 had already shown they can use Boeing aircraft to impact buildings…
I say this as someone who knows the official 9/11 story to be incorrect and previously doubted the Pentagon impact - a missile, explosives, small aircraft or flyover does not fit the evidence in any way, shape or form.