11:45 PM, my code now works. I'm thinking it's something Apple fixed. But FWIW, this time I had iTunes open when I inserted the digicopy DVD, and instead of going to the autorun prog from the DVD, I just went immediately to the iTunes "enter-your-code" screen. I entered the code, and it worked like a charm.
EDIT: Well, it STARTED to work like a charm. It now shows up in my directory of movies, and I have a size and run time of the film. But for some reason the DL stopped after just a few seconds. Sadness...
Message was edited by: Slarty Bartfast