Nice endings
The one thing that really gets to me with the flash movies of this type is that there is no voice acting. It's such a simple addition and it's easily overlooked. You've put in so much dialogue here that it needs to be read out, rather than forcing the viewer to read it all for themselves.
I like how you've put the subtitles in one place, as it makes it easier to read - now all you need to do is tone down the font you chose for them, as it can be quite difficult to recognise certain letters in a short amount of time.
You've manipulated the sprites quite well and have written a decent plot for it. I would suggest that you have a scene selector, so that you can view the alternative endings, rather than just throwing us back in to watch the rest of the movie over and over again.
I liked the battle effects, with the swirling energy around both Sasuke and Naruto, it worked well with the rest of it and was definately your best piece of animation.
[Review Request Club]