When I asked Jerry how the climax with Rob stuck on the conveyor belt would need to be color corrected, so that it gets more red with each shot, as intended. He gave me this answer:

If a few non-red shots are color corrected before and after that section, then you can just leave the same setting and all the reds will increase and decrease as intended. The color correction doesn’t have to change shot-by-shot within a given reel. Set one shot correctly within a reel and the rest should remain correct in that same reel.