Léon: The Professional (French: Léon; original US title: The Professional) is a 1994 salitang ingles French thriller film written and directed sa pamamagitan ng Luc Besson. The film stars Jean Reno as the titular mob hitman; Gary Oldman as corrupt DEA agent Norman Stansfield; a young Natalie Portman, in her feature film debut, as Mathilda, a 12-year-old girl who is taken in sa pamamagitan ng the hitman after her family is murdered; and Danny Aiello as Tony, the mobster who gives the hitman his assignments.

Plot

Leone "Léon" Montana (Jean Reno) is a hitman (or "cleaner", as he refers to himself) living a solitary life...