I noticed a bit of an anomaly (it may have been in the original version and I just didn’t notice it) at 00:02:58 to 00:03:06 you can see white Storm Troopers(?) walking across the Death Star (I assume they’re building it). There is a light box around them until they stop walking at 00:03:06. I don’t recall if this was in the original version or not and if so I just didn’t notice it before. I realize it’s a little late to be pointing this out so I’m going to assume it’s supposed to be there.
If it’s what I’m thinking it is, that’s a matte line. It was in the original, removed from the Special Editions (because it was unintentional but largely unavoidable in the original), and restored for the Despecialized Edition.
Actually it’s a matte box and the shot is unchanged from the BD, where it was in turn unchanged from the original version (as evidenced by the presence of matte boxes).
But I’ve never actually noticed those little guys before. Cool little detail!