Check out this screen grab from The Empire Strikes Back comparing the new 2004 transfer (top) to the 1993 THX transfer (bottom).
I'm sure all that cropping is deliberate, right? It always happens on shots like that one, with the camera looking into the Falcon's cockpit. This photo is when they are escaping from Hoth. Later, during the asteroid field chase, the same cropping is present.
Neil