[mixtur2021]

Indeed. 35mm is actually a good archiving format if stored correctly; good for 100 years. No need to continually change tape formats every couple of years.

I've heard for some of the 3 strip technicolor restorations, they scan the 3 individual B&W camera negative rolls separately (red, green, blue) and do the technicolor printing process in software effectively. This can give better results if the final technicolor print has issues.

[dylan604]

IIRC, Snow White was the first digital corrected film that went through this process. Each frame scanned from negative, stored as digital file, digitally restored*, rescanned into channel separate negatives via laser recorder.

*Restoration has multiple stages like film scratch removal, dust removal, color correction, shape restoration from any warping/shrinking in the film being scanned, etc. Lots of work goes into this that most people never even consider