There's a lot of film used for each motion picture print, so even a small part of the market is still a large volume of film. How economic it is is something else.
As for you wifes rebuilt "Kodak" disposable camera :-) I did some research 2 or 3 years ago into the recycling of disposable cameras. I found a company who bought the bits from the minilabs, they disassembled then rebuilt from the best parts, I guess using whatever brand of film they found to be most cost effective.
Originally Posted by Photo Engineer