 The footage from this section of the story is from the 1957 Bruce Lee film "Thunderstorm", which has also been redubbed.This act of the presentation purports that Lee was learning karate to live up to the legacy of his great grandfather, who was "one of China's greatest Samurai masters" (an anachronism as China did not actually have Samurai, these were in fact Japanese warriors).The life of Lee's grandfather is also portrayed in this act at alternating points, in scenes lifted from "Invincible Super Chan".