One thing that bugs me in ROTJ is that, before the shot of Han and Lando talking about the Falcon, we get a clear view of the rebel hangar. And the matte painting during this specific shot shows the falcon on a raised floor while the shuttle clearly does not block the walkway between raised floor and the now lowered floor, Notice that the the Falcon is too close to the edge and a metal fence (or framework) is seen between the Falcon and the said lowered floor, no light is seen outside the right side of the ship. But the following shots does not show any raised floor or metal framework that exists and the floor is completely flat, Plus there are light sources, and the shuttle? It is now blocking the imaginary floor, but then, Poof! A bunch of boxes (objects) appear next to the shuttle. that was not previously seen in the pandown. So its just the rebel hangar changes between shots, But its just a matte painting, but since Adywan is a continuity Nazi, I think this can be his ultimate challenge.