Léon: 'The Professional' is a 1994 English-language French thriller film written and directed by Luc Besson, starring Jean Reno (Léon) and featuring the motion picture debut of Natalie Portman (Matilda). Matilda, a 12-year-old girl, is reluctantly taken in by Léon, a professional assassin, after her family is murdered. Léon and Matilda form an unusual relationship, as she ...