the begining looked great but the end...
One thing that would make yuor score get much better is not having the white backgrounds on the sprites. I had te background on my sprites for a movie and it got blamed so fast. Anyways when you put your sprite into flash select it and go up to modify, bitmap, trace bitmap. THen make it 1,1,pixels, and few corners. this should make you able to deleate the white background. other than that i think your movie was pretty good. Very origrnal idea. hope this is of help!
Tucker