What is the name of the movie about stepping on a knife blade with bare feet?

The movie about stepping on a knife blade with bare feet is called "The Legend of the White-Haired Witch". "The Legend of the White-Haired Witch" is a martial arts movie directed by Ren Tai and co-starring Leslie Cheung, Brigitte Lin, and Lam Jieying. The film is adapted from Liang Yusheng's novel of the same name. It tells the story of Wudang disciple Zhuo Yihang who falls in love with the evil demon girl Lian Nishang. Their relationship has many twists and turns. In the end, Zhuo Yihang misunderstands Lian Nishang, which eventually leads to tragedy. In 1994, the film won three awards for Best Art Direction, Best Costume Design, and Best Cinematography at the 13th Hong Kong Film Awards.