How did the Infernal Affairs become a classic police and bandit film? Was Infernal Affairs a novel that was transformed into a movie? What was the true consciousness of the Infernal Affairs?

Infernal Affairs was a police and bandit film co-directed by Hong Kong directors Liu Weiqiang and Mak Siu-fai. It was released in 2002 and was a classic in the Hong Kong film industry. As for how this classic police film was made, there is no official full version of the story outline and shooting plan. However, there are rumors that the film was originally adapted from the novel Infernal Affairs. The novel, Infernal Affairs, told the story of the complicated relationship between an undercover police officer and a gang member, while the movie made the story more complicated and intense, adding more plot and reversal. During the filming process, Liu Weiqiang and Mak Zhaohui's team revised the script many times. Through continuous trial shooting and adjustment, they finally determined the general plot and style of the film to create a work with a strong visual impact and tension. The true meaning of Infernal Affairs was to explore human nature, friendship, betrayal, and power struggles. In the movie, the protagonist, Chan Wing Jen (Andy), is an undercover police officer. He has a complicated relationship with the gangster, Liu Ming (Tony). In this dark world, they constantly face power struggles, betrayal and the test of humanity. Through the compact plot and wonderful performances, the movie deeply reflected the complexity of human nature and the impermanence of life, becoming a classic of Hong Kong movies.