Besides, how many movies in the last 50 years are made in B+W, use title cards, have a soundtrack of someone plinking on a pipe organ, are fuzzy and grainy, etc?

Most people won't even watch a B+W movie, let alone a silent one.

P.S. Reddit has a subreddit for colorized photos. There is some amazing work done there. It really makes the photos more interesting. My wallpaper is showing one right now.