Zombie, you mention The Film Foundation on your site here; I just wondered if you ever attempted to contact them?
It's pretty clear from this page that they strongly oppose the alteration of a film by someone other than the film's creator - they are "dedicated to protecting the work of film artists from alteration and to ensuring that the artists' visions remain intact for future generations to enjoy" - but what is their view when the artist himself decides to alter the film?
Interesting side note: Harrison Ford is a governor on the Artists Rights Education and Legal Defense Fund Council.