Liked it a lot.
I liked your movie a lot. I just got a couple of suggestions. First, for next time, watch for the resolution, watch your movie here at newgrounds to see what I mean. Second, there's a cheaper way to make the alpha effect you wanted to do, and it can be cleaner; well, in this movie, yor background was all grey, so you could have just "tinted" your clips, and I tell ya, that uses less memory and looks cleaner. For example, there's a shadow there in which you used the alpha, and when you did it, well... check it yourself to see what I mean. =)
Whatever, good movie and good synchronization with the music. C ya