Yeah, the distortion is there and it's not just the side either, it's the top and the bottom too. It simply has a curve to it, centered somewhere on the left of the frame. I wish it could be compensated for somehow because it always gives me hell when trying to do GOUT/SE composites, especially stuff like the lightsabre duel, where there's movement of the composited element along the whole frame. I had to keep realigning.
On the other hand the distortion is not big enough to throw off the cropping percentages taken from overlaying it with an undistorted source in any significant way.