LexX said:

I meant that is the whole movie actually cropped from a bigger image or was it only that shot or what's going on. So could you go back to original negatives and see a lot more than what has been released? Like 005 said: I'm just wondering what ratio the original film was in to allow for so much cropping.

This doesn't seem to be a regular difference in cropping, that was what I first thought when I saw that screenshot, but as you can see it's largely shifted to the left, so it must be a deliberate change. (Lucasfilm really made that word infamous ;).

As Harmy said, most films are cropped more or less when they make a video transfer, but then it's in the range of what was displayed on the Empire-pic he posted, the Japanese Special Collection transfer for example displays too much vertically in some scenes but it's always a marginal.

They must've approached this scene in the same way they altered the composition of the Falcon-cockpit in Empire.