Hi Jhunt17,
It's too early in the game to expect movie releases to be mixed in a multichannel lossless format. Dolby Digital 5.1 is a worldwide standard and will remain so until the quagmire of Blu-Ray and HD-DVD is settled.
It costs plenty in extra time with the mixing engineers to add additional discreet channels as well as adapt the mixing studios to operate in new Dolby formats.
This also gets into a philosophical question of how small nuances in audio improvement may come at too great a cost in the production budget of movies. Put another way, Dolby Digital 5.1 is an extremely transparent, albeit, "lossy" format. My experience testing lossy algorithms vs lossless formats is such that it takes concentrated listening on high-quality earphones with very particular groups of instruments or vocals to detect any difference between the most transparent lossy formats and their lossless equivalents.
As you know, DVD-Audio and SACD can sound wonderful, but it's clear that the slight audible improvements offered by those formats were not sufficient to persuade consumers to adopt them.
So part of me believes that discreet 8-channel lossless soundtracks will come eventually, but don't hold your breath for immediate changes.
