Just wanted to add my thanks to DrDre for this tool. It works amazingly well! I've been trying it with a few different films and it does an awesome job.

In particular, I tried regrading the parking garage scene from the recent Terminator Blu-ray, which has some of the worst teal-shifting I've seen in a while. I matched it to my PAL DVD copy of the film from 2005. Here are the results (which took a couple of days to render!):

https://mega.nz/#!dl5zlRAT!Jn1tJj5d1dmsAh_ORHnSLgbzh_XHcdzb5MDaYbkKXj4

I only matched it to one shot though, so the colours aren't 100% accurate across the whole scene. Still, it looks WAAAAAY better than what MGM put out on the Blu-ray.

Looking forward to version 1.3+. If we can start using LUT files from this program in Premiere or After Effects, that's going to be amazing.