Although very short, I think you accomplished your mission, lol. From the sounds of the movie I don't think you could have really expanded upon it too much. I've only seen the trailer and heard from friends about it, but it looks about right, lol. Drawings were great in this one, all the animations were fantastic. This is probably your best work I've reviewed yet, but I guess that isn't saying a whole lot considering I've only done 3 so far.
Oh and the voice acting was superb. Keep it up man.