not the best, here are some tips:
well, first, i hope you make the movie. now the tips
I can tell that this is gonna be an action flash, so it would probably be better to make it frame by frame, thats just my opinion but you can get allot more done that way. Also, the models for your characters were a bit weird in their preportions, if you are gonna continue tweening, then try to sort them out.
anyways, a good attempt!