I liked it overall (awesome ending) but I have two criticisms. One, Sasuke wouldn't think "I don't think I'll ever be able to catch up to you." He'll be angry, but he'll just resolve to become more powerful in order to fix the problem. (He won't succeed but he'll try). Sasuke doesn't like to admit weakness. Two, I don't think the Kages are coming back so soon. With all the father-son stuff, it'll be those two fighting Obito.
Finally, the title reminded me of this of my favorite childhood movie.
[video=youtube;6IyRe-N_RSg]http://www.youtube.com/watch?v=6IyRe-N_RSg[/video]