none said:

Don't believe any projects following your criteria have taken place in OT.com. A fan edit of AotC may have done a color correction, asking around at fanedit.org would be a place to start.

I'll check there, thanks.

You_Too said:

I don't really know what would be considered "correct" for TPM. Probably if someone had a bootleg straight from a theatrical print we'd know how it should really look. (Not talking about the cam-recorded versions)

In the DVD/HD broadcast there's the pink tint over the whole thing, not to mention the over-sharpened edge ringing.

In AOTC on blu-ray though, the hue has been shifted on each color separately, it seems. The only cure for that would be to use selective color or something similar and match them back to the HD broadcast.

Or are you talking about a scene by scene RGB balancing correction? (Like, not following a reference.)

I was thinking of using the DVD (or in this case the HD broadcast) as a reference, but from what you said, it seems to be a huge amount of work if I had to go through selective colour. RGB balancing might not give that much accurancy.

As for TPM, although limited, there are a good amount of screenshots from the film without any DNR or other filters applied, so I would have to go by that.