Decent starring vehicle for Tony Liu (Liu Yung), who had portrayed the son of the title villain in Bruce Lee's "The Big Boss" a few years earlier. He's a likable, convincing hero, the numerous hand-to-hand fights are well choreographed and there's some nice South Korean location shooting, but "The Manchu Boxer" plods along without making any particular impression. The revenge theme is one that the viewer will have encountered all too often in martial arts movies, and the villains--a surly brother-sister duo--are caricatures whose loutish behavior appears to have no first cause. Wilson Tong and Sammo Hung play Japanese hired henchmen of the villains, and director Wu Ma sneaks in a cameo as Liu's opponent in the opening scene of the film. Intriguingly, the scratchy English-dubbed print of "The Manchu Boxer" (available on a budget DVD as "Masters of Martial Arts: Bonecrushers") darkens the scene in which Liu puts the evil sister to death; the film's U.S. distributor, Independent-International, evidently considered this shot too upsetting for drive-in audiences. Five and a half stars.