Oh, right, now I understand that SnakesOnAPlane comparison, yes yes. I agree.
Goku wasmt super buff in DB though (yes DB this movie doesn't technically take place in Dragonball Z but in Dragon ball when Piccolo first arrives).
Maybe not super buff, but super ripped. Besides Goku was like 99% of the time a little kid in original DB.
I agree that these guys don't need to be asian, since Goku, Piccolo, etc. are mostly from space anyways. But martial arts training is very important for anywhere close fluent fighting. Yes, it's possible to train for these roles, but it won't come off naturally without some real history with the art. Good example is Matrix, with Neo's
uber kung-fu skills... ... ...