Léon: The Professional (1994) – Action, Crime, Drama July 13, 2021 nidhi 1990’s Classic Movies, Classic Action Movies Léon: The Professional Mathilda, a 12-year-old girl, is reluctantly taken in by Léon, a professional assassin, after her family is murdered. An unusual relationship forms as she becomes his protégée and learns the assassin’s trade. Credit GAUMOUNT