Citizen Kane (partially found colorized footage of drama film; late 1980s)
From The Lost Media Wiki
Released in 1941, Orson Wells' masterpiece Citizen Kane has been considered to be one of the greatest, if not the greatest film of all time. During the 1980s, Ted Turner began to colorize the black-and-white classic. However, one of Orson Welles' last wishes was "don't let Ted Turner deface my movie with his crayons." Only the last reel of Citizen Kane ended up undergoing the colorization process before it was locked away in the vault and never seen again. Clips from it were seen in the BBC documentary The Complete Citizen Kane (at 1:17:10)