James Wong adapts the rich mythos of the Dragonball series that grew from a manga into various popular animated series with this 20th Century Fox production starring Justin Chatwin. The plot revolves around Goku (Chatwin), Earth's greatest champion, who must defend the planet against an invading race of alien warriors hell-bent on dominating the universe. Wong directs from his own script, with Kung Fu Hustle's Stephen Chow producing. Buffy the Vampire Slayer's James Marsters co-stars as the film's villain, Piccolo, with Jamie Chung playing Chi Chi and Emmy Rossum portraying Bulma. Hong Kong legend Chow Yun-Fat rounds out the cast as Master Roshi, Goku's mentor in the film.