"Ninja Assassin" is only the latest in a long line of fine martial arts films. Chuck Norris knows a thing or two about this. And if you don't know why, he'll punch you back into one of the decades when his contributions to martial arts cinema were still young. Because you don't mess with Chuck Norris.
What you do with him is ask what his favorites in martial arts film are. And then you don't dare disagree with him. Because he's Chuck f--king Norris, and he won't stand for that guff.