"Infernal Affairs" is widely regarded as a highly acclaimed film, often praised for its intense storytelling, strong performances, and complex characters. Released in 2002, this Hong Kong crime thriller revolves around an undercover cop and a mole in the police force, creating a gripping cat-and-mouse dynamic. The film's tight direction and engaging plot twists have garnered critical and commercial success, leading to its status as a classic in the genre. It also inspired Martin Scorsese's Oscar-winning remake, "The Departed." Overall, it's considered a must-watch for fans of crime dramas.

The movie based on "Infernal Affairs" is "The Departed," directed by Martin Scorsese. Released in 2006, it is an American crime thriller that follows the story of an undercover cop infiltrating a crime syndicate while a mole within the police department seeks to uncover his identity. "The Departed" received critical acclaim and won four Academy Awards, including Best Picture. It effectively adapts the themes and plot of the original Hong Kong film while setting the story in Boston.

Yes, "Infernal Affairs" (2002) and its prequel "Infernal Affairs II" (2003) are related. The first film follows the intense cat-and-mouse game between an undercover cop and a mole in the police force. The second film serves as a prequel, exploring the backstories of key characters and events leading up to the original film. While "Infernal Affairs" focuses on the present conflict, "Infernal Affairs II" provides context and depth to the characters' motivations and the circumstances of their dual lives.

Yes, "The Departed," directed by Martin Scorsese, is based on the Hong Kong film "Infernal Affairs," which was released in 2002. Both films revolve around an undercover cop and a mole in the police force trying to identify each other while infiltrating an Irish gang. "The Departed" adapts the original story to a Boston setting and features a prominent cast, including Leonardo DiCaprio, Matt Damon, and Jack Nicholson. While retaining the core plot, it introduces unique elements and character developments suitable for its American audience.