Other mistake: The airplane interior shots were obviously done in a studio mock-up. On a narrow body plane like that, the ceiling is fairly low but follows the fuselage contour to provide maximum headroom above the aisle. The ceiling shown was very high and flat all the way across.
Continuity mistake: The exterior airplane shots show a small commuter jet, which has only two seats on each side of the aisle. The interior shots show a much larger plane with three seats on each aisle, with distinctive Boeing overhead bins and sidewalls.