Remember guys, this is not an "official" release, it's a fan revisit: referring to it as an official release might attract official studio attention (and not in a good way).

There has been a lot of argument on forums about teal colour timing of some Bluray releases and how obvious it appears when viewing screengrabs in a browser or desktop. What is interesting is that, when viewed in a darkened room, like in a cinema, teal-tinted movies do not look as teal as on the desktop. The reason seems to be that human vision performs a sort of auto-white balance in the absence of any other reference. Consequently, viewing in a dark environment should result in perception of a teal tinted movie not appearing as teal as with a screengrab on a desktop (where there is usually pure white reference). In fact I have noticed that viewing tinted material in dark environments actually seems to shift the whole thing towards the chromatic opposite of the tint. So, perhaps when we see a teal-tinted screengrab and it looks wrong, perhaps the studio actually means for us to see a more golden appearance to the movie in the dark cinema for which it is intended to be viewed.

Whilst it may be perfectly okay to colour match screengrabs of an IB print and the material being worked on, both on a desktop, the final result is supposed to be viewed in a cinema-like environment, so I would hope any decisions on whether the desktop version looks too green or whatever are made in the end environment for which the material is intended. Indeed, the bonus Bluray disc for "The Hobbit" makes it quite clear that colour grading is performed in a darkened environment, similar to a cinema.

A write-up of the Senator Theater screening of an IB print of Star Wars is quite interesting about colour tinting:

http://savestarwars.com/technicoloribscreening.html

where it talks about "a tiny green shift in the I.B. print, indicating it is actually slightly warmer".