And, DR JRand: DREAMGIRLS is a 2.35:1 film (I had forgotten it was this wide), so if you're watching a full frame version, you're missing 45% of the picture and can't possibly make an informed decision about the quality of the film. Yes, you're going to hear the music side well enough, but the framing of the film, the choreography of the numbers, and the overall direction is going to be horribly distorted by the cropping.
Hate to keep harping on it, but it DOES make a difference.