Star Wars also had a 3 strip color separation. They found in 1994 that it had never been used to strike a clean negative and it had suffered form shrinkage. Now, back in 1994, that meant that it was useless, but today, that means that it could be used to digitally restore the original 1977 negative (original color timing, original scenes, all in original negative resolution because the 3 strip is 3 B&W strips that do not fade and have higher film grain resolution than color film). That would be the item I would want to get a hold of to start a restoration.