Yesterday afternoon there was just an onslaught of information about the movie. I was able to watch a Dreamgirls featurette and let me just tell you that if you are anticipating this movie then you must watch this featurette. It gives you a taste of whats to come. Very exciting. You can watch the featurette right here. I also added some caps from the featurette.
Click: View Dreamgirls Featurette HQ
(Dreamworks has the edited video, It's in the video section of the website)
Sources and Big Thanks to RE, DCC Forum, youtube.com and Dreamworks