Originally Posted by Voiceless
That's why there is mostly such a horrible acting in martial arts movies. They usually just take some real martial arts practitioners without any real acting formation. There is a reason why most good actors have spend years in renowned acting schools before they became famous.
In one of the Bruce Lee film/documentaries, I think Dragon: The Bruce Lee story. They took an actor that looked like bruce and taught him martial arts, rather than take a martial artist and teach them how to act.
Not saying it was any kind of in depth training but I guess they need only teach him the moves he needs to know then camera angles and Hollywood trickery done the rest.