Prod. UM45 - Donald and Pluto Mosaic
Jeff noted that there seemed to be some extra scenes in the beginning. Since these are all using the same background, it is my opinion that these are camera-cuts: within this (20 second) scene, there would be indications on the exposure sheets to move the camera abruptly to a new location, thereby giving the sense of a cut to a new scene. The animation just continues, the camera looking at a different spot...
Note: I may not be able to do any posting before April 4th or so! Check back - who knows!