towne32 said:

The X-wing explosions in the Death Star run had their color changed dramatically in the blu-ray. I believe some (but not all?) were recomposited. How do these look with your technique? Does something that's as dynamic frame-by-frame as an explosion need exact frame reference matching?

edit: On that note, I'd like to see if it can change back the glow of the sparks after Han shoots at Vader and company.

Some scenes are really difficult, because the bluray simply does not have the color depth to do a proper correction. Crushed blacks are only part of the problem. Any RGB channel that has been pushed to it's limits (0 or 255) is impossible to properly correct.