They should have the same framing, but they don't.
Left/right cropping differences can be explained by the vagaries of analogue video capture (by which I mean the laserdisc rips being used for comparison).
The picture would have been vertically cropped in some way before encoding to DVD, if only to make the bars truly black, as opposed to slightly fuzzy dark grey. At this point it's anyone's guess why they cropped to 326 pixels - although 326 is the closest aspect ratio to 2.35:1 for PAL (though by this logic the NTSC GOUT should be 272 pixels, not 274).
Or maybe there were technical or other reasons why they made each of the GOUT the same/similar height(s).
DE