Rating: 7/10
Jaden Smith and Jackie Chan are amazing actors. The fight scenes are excellent; however, there is not enough of it—the beginning and the middle of the movie are rather slow. This is more than compensated in the last 15 minutes, a scene that is one of the best in film history.
Everything about the last scene is convincing: story and character development, acting, pace, emotions, music. I would rewatch the movie just for the finale.
A Reasoner's Miscellany 