Could you post some matching screens of the DVD with correct aspect ratio?
There are several DVD versions, some are 4:3, others are 1:66.1 non-anormorphic and the theatrical OAR was 1:85.1 but I don’t have any copies from which to make screengrabs.
http://www.dvdcompare.net/comparisons/film.php?fid=25698
This is, without a doubt, just a very good upscale from an analog master which was stored in the composite domain. Look at the PAL rainbowing on the rooftop in the quoted image.
Does that mean they’ve very likely recycled the analogue master that was used to create this?