Ady, surely there's an easier way for you to color correct without having to use tons of masks. I did a quick color correct on the original 2004 lucasfilm frame from the pic you posted. Only took me a couple of mineuts in photoshop to find a pure black and neutral color point to bring back the original color in the frame. I also used another photoshop tool to completely remove the unwanted cyan out of the frame.
I hope you don't mind me showing this example.
