I watched a version that was not sub-titled so I had no clue what anyone was saying. There were a few details that weren't clear till I read the notes here in IMDb after watching it, but it didn't make a real difference. This young actress does a fantastic job of portraying the autistic side of her character, certainly didn't expect to see competition for Dustin Hoffman's Rain Man here - it will be interesting to see her in other roles. As for what most everyone will expect to see, wow. Remember Zhang Ziyi's work in Crouching Tiger - this is like those scenes but for practically the entire length of the movie. I can't think of any martial arts film I've seen that had moves any better than what is here. Roll together all the Jackie Chan, Bruce Lee, Jet Li, Jason Stratham you've seen, blend in both Kill Bill's, and top it with some really brutal work for the stunt guys - and yes it's all being done by a little girl, but you won't have much trouble at all believing she could really do it. It's a shame that most people will probably never see this actress, just because she didn't happen to be born in an English-speaking country.