TServo2049 said:

What about the IB Technicolor print that the LoC had but returned to its owner because they couldn't make a good-looking copy of it? I'm assuming the owner was a private collector? (Could it have been the same print that was shown at the Baltimore screening?)

It was a private one. Probably Fox didn't have any in their vault material, but the restorationists at LoC knew of a private print they could borrow, which didn't work out. Film preservation is based in large part on the private community, so it's unspokenly tolerated and maybe even encouraged.

It wasn't the one that was screened at Baltimore (the source told me this). There are a few I.B. prints out there, I know of at least three but there is probably much more, as the source also seemed to be under the impression that the entire British run was in Technicolor. But the problem is that Technicolor prints can't easily be preserved. If you have millions of dollars and weeks to work on it, then yes you can do it, but in terms of sort of quick-and-dirty transfer it's not that simple.