hairy_hen said:

Given the information and anecdotes in this thread, I'm starting to think that the Imax and 35mm versions may well have had different colors from each other, due to the simple fact of their having been made at different times with different processes and equipment, most of which were analog and therefore not capable of being duplicated exactly with no change every time.

Same here.

But I don't think it is as dramatic as the sample re grade I tried.

Would have to see a 35mm print to know for sure. The 35mm cells presented earlier in the thread could very well be from the Trailers.