Question: Lee Byung-hun worked on the 2005 gangster film written and directed by whom?
Sentence (from "I Saw the Devil"): The film introduces the character of NIS agent Kim Soo-hyun (Lee Byung-hun), who embarks on a quest of revenge when his fiancée is brutally murdered by a psychopathic murderer, Jang Kyung-chul (Choi Min-sik).
Relevant evidence: No