Y'know, I'm starting to think that all those rumors about Williams destroying footage, were nothing more than that...rumors. When you have a project with that many people involved, copies of work in progress are going to be changing hands, people are going to be taking print duplicates home with them...it's just the way folks are. Especially if you're involved in a film as gorgeous as this one.
And it looks like the folks are finally starting to come out of the woodwork. BTW, how did this person hear of the project?