I don't need to convince anybody that I know kung fu, but maybe somebody needs to know that I really can act, without doing a Chinese accent or a funny walk.
Realism is always subjective in film. There's no such thing as cinema verite. The only true cinema verite would be what Andy Warhol did with his film about the Empire State Building - eight hours or so from one angle, and even then it's not really cinema verite, because you aren't actually there.
Generally the younger generation are not hard working. They will have to put in more effort to achieve results in tournaments. most of them can perform well but they cannot deliver when they play abroad.

