The "Chinese vs. Japanese" theme gets an innovative twist in Heroes of the East, a classic Shaw Bros. martial arts film directed by the venerable Lau Kar-leung.
As a child, Ho To (Gordon Liu) was promised in marriage to a Japanese girl, Kung Zi (Mizuno Yuka), the daughter of his father's business partner. Although he's not too keen on the whole arranged marriage thing, he changes his mind when he sees how pretty his new wife is, and the wedding proceeds - with Kung Zi following Japanese traditions, to the confusion and outrage of the Chinese guests. That's not the only Japanese tradition Kung Zi embraces, though. It turns out she's highly skilled at a variety of Japanese martial arts and weapons. Although Ho To is a martial artist himself, he considers the Japanese martial arts too immodest for a woman to practice (due to the leg stances and the karate gi exposing too much of her chest) and tries to convince her to learn Chinese styles. At first, the disagreement is between the directness and force of Japanese styles as opposed to the grace and fluidity of Chinese styles. Not only that, but Ho To's dumbass servant Shou (Cheng Hong-yip) has a tendency to spread inaccurate rumors about him and Kung Zi, causing Ho To no little embarrassement. He takes it out on Kung Zi, treating her Japanese styles and traditions with increasing contempt. This only leads Kung Zi to dig in and stick to her own Japanese traditions. Eventually, she's had enough and she leaves Ho To, returning to Japan.