Emulsional Rescue: The Godfather Restoration Documentary
https://www.youtube.com/watch?v=Ak19g0j10-Q - from the KnowlesKnows YouTube channel (19 mins long).
The blurb:
“From the Coppola Restoration BD set.”
It’s A Wonderful Life - 4K Restoration Process
https://www.youtube.com/watch?v=prsRCz7dGq4 - from the squallmx86 YouTube channel (13 mins long).