Well, since others are posting here. I've found this thread and I don't have too much to offer, except when it comes to the 2006 GOUT. I believe the master tape they used for ANH did not have the original opening crawl on it. In Empire of Dreams they used a short clip of the original crawl and the stars are completely different. I think they edited the original crawl in in some way.

This thread is fascinating. Makes me want to make an edit that has those other credits and that cloud glitch. Interesting to note that the first theaters had this other type of print and stereo while the others had the familiar credits and mono.