@Gaffer Tape: I know what you're saying - and I know the Star wars Trilogy would still look very good even if nothing was touched but what about if a film's effects were compromised by an unrealistic schedule or studio politics? A prime example of this is Star trek: The Motion Picture. The theatrical version on blu ray was a god send to fans of that movie who were dissatisfied with the ham fisted and half-assed "restoration" and "director's cut" DVD release (sounds familiar, doesn't it?) but there are some seriously deficient effects shots in there that happened as a direct result of mismanagement and interference from the studio. Some of those shots and mistakes and production shortcuts are CRYING for a bit of spit and polish. Its a very fine line and a very good topic for debate - just seems all the more bizarre to be splitting hairs over hypothetical versions of a film that as of now only officially exists in a bastardized condition. I think maybe in the end I'd also err on the side of "restore but don't alter, even so much as a matte line" - we've been burned once, would be better in the future, if there's ever a proper restoration, to be extremely cautious.