According to internet websites, Apple has been asking movie studios to include iPod video content on Blu-ray discs. With the first discs expected to ship next month, Apple apparently wants to make sure there will be a "sufficient library of playable content already available for customers to watch" when the next generation iPod video is released. The Blu-ray discs will be able to hold over 50gb of content, so to include an iPod/computer version of the film on the same disc as the movie should pose no problem.
If this news is in fact true, this would be great news for consumers. Traditionally, the model for this would require consumers to buy an additional version of a movie in a different format (see UMD). And this would be very generous of Apple, considering it could probably make a fortune selling movies on iTunes.