1. Leslie Cheung and Chow Yun Fat dubbed "A Better Tomorrow II". One of the scenes was that Chow Yun Fat spoke vulgar English with an American accent. Although Chow Yun Fat understands English, he pronounces Leslie Cheung, who has studied in the UK for many years. More standard, so Leslie Cheung volunteered to serve as Chow Yun Fat's "foul language" teacher.
2. Because the film was too long, almost three hours, and Dean Shek's line was too long. Besides, the screening time of the Hong Kong theater would not exceed two hours, and the film was eager to be released, so John Woo cut it Lost twenty minutes of the movie.
3. The "Heroes" series has reached the sequel. As the producer, Hark Tsui personally served as the director and directed "A Better Tomorrow II" with John Woo.
4. "Brother Mark" is dead in "The True Colors of Heroes". In order to make the audience feel fresh, John Woo and Hark Tsui chose Dean Shek, one of the owners of New Art City, to play the role of Brother's mentor "Dragon Si".
