Gotta tell you, when I first saw the thread name, I thought you were combining two pins and re-theming them pin into the movie!
Outstanding, and a terrific idea on the backglass. I always thought the "scan, fix and print" option would make a great backglass as well. The hard part is the opague versus non-opaque areas. Looks like you have a good handle on how to do it. Can't wait for more details!