Out of all the Original Trilogy the film I have most looked at is Empire Strikes Back.

There are definitely some shots that I think have plain wrong Color in the Original. Now you may just want to match the colors to the theatrical prints which is fine if that is what you want to do.

But in the case of an error which I think there are a few in Empire that just don’t look right what then?

The shots that don’t look correct I think are the Asteroid Canyon Explosion element. (needs separate correction)

And I also think the Planet Bespin might not also be right. Are there any images of that planet not used in the film as a raw image or production still of the planet. I think it was meant to be Brown and white can anyone confirm this?

found this ^

Also much of the Blue is gone from Cloud City Skies. In fact the film is a nightmare to do with Blue / cyan spectrum in some bits. But it sometimes tips the other direction to Red / Yellow. And also sometimes the magenta too.

What you have to remember is when anything is combined (i.e. Bluescreen the individual elements often need separate correction not lumped together as one image because they are not one whole image they are two combined) It needs different handling especially with Empire, all the skies and so on. This is the main weirdness on the Bluescreen shots not the actual footage when there is no Bluescreen present.

I’d be interested what you get from the asteroid canyon explosion anyway without color correcting the Falcon with it.