What's the name of this martial arts movie?

[blushiz]

It's been driving me crazy.

It's a newer film that had English subtitles. I don't remember the full events of the story, but it starts off with a kid trying to copy his father's martial arts but doesn't understand why his father doesn't want him to practice it. So the kid spies on his father breaking stones in half, practices it on his own and has battles in town on elevated stone circles against other martial artists to prove his father's martial arts are the best. However, things start to spiral out of control. I remember the movie being pretty violent.

Does anyone know the name of this movie?