Anyway, what’s so special about the 70mm ESB? Didn’t ANH also have picture and sound differences between the 35mm and 70mm versions?
Sound, yes, picture, no. ESB is the only one to have visual/editing differences between 70mm and 35mm, which was just down to a few VFX shots in the final scene being unfinished when the 70mm prints were struck IIRC.
I seem to recall reading there were also slightly different scene transitions between the two. Some of the audio changes were carried over to the SE. ‘It’ll keep you warm until I get the shelter up’ ‘You were lucky to get out of there’ etc.