In a film, a character with this profession visits a man who hangs paper cranes on his yacht after looking for the Complete Works of Shakespeare in a library. After a rival shoves a meal off a table, a character (15[1])with this profession tells a story about two men competing over a kidney transplant by guessing a card put in their pocket by the other. To celebrate spending “a quarter of a century on this planet,” a character with this profession jogs in the rain and receives a birthday message from a (*) blonde wig-wearing (-5[1])woman he met at a bar. A man with this profession chases a character in a scene that uses the step-printing effect to generate motion blur. In a 1994 film, two men with this profession played by Takeshi Kaneshiro and Tony Leung recover from romantic breakups. For 10 points, what profession is held by the leads of Chungking Express and by the undercover Chan in Infernal Affairs? (10[1])■END■ (10[1])