Gundark, I saw what you were referring to when I saw Brother Bear yesterday. And it annoyed the hell out of me. The DVD keeps the same "aspect ratio" vertically speaking (the black bars on the top and the bottom of the screen remain the same throughout the movie), however, for the first 20 minutes, there are black bars on the sides of the screen as well. God, it was awful. I just could not get over that. I would've rather had the screen shift from one aspect ratio to the other via compressing the top and bottom bars than by adding the side bars.