At least some Star Wars LDs are not actually 2.35:1; they're 2.20:1. And the film all of these things originates from is probably more like 1.2:1 or 1.3:1 (anamorphic), with a certain amount of 'extra' space for cropping/matting
I find this very interesting. Do you know which releases correspond to which aspect ratio, and whether any of the LD or VHS releases contain the original theatre cropping?