That bootleg correction is very close to ideal, as far as I can tell.
It’s rough, but at least it points in the right direction I think in terms of the hues. I’m hoping to obtain a large number of accurate reference photos of a projected technicolor print in a few months, using the same process Mike V used. If the time comes, I will create a separate thread for color references. I will also try to include balanced references, once again using the subtitles to white balance the shots.