I heard that Dolby was showing off video noise redution technology at CES. It is also on Dolby's web site so maybe someone else is actually doing the noise reduction on some of these titles at the moment.
It's not noise reduction. Read the article attached to that link here: http://www.dolby.com/entertainment-n...l-overview.pdf. It's actually dimmer control technology for LCDs utilising local rather than global backlight control.