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Léon: The Professional, a 1994 film directed by Luc Besson, garnered him a César nomination for Best Director. The film follows the unlikely bond between Léon, a professional hitman, and Mathilda, a 12-year-old girl whose family was murdered. Besson's skillful direction and the powerful performances of Jean Reno and Natalie Portman earned the film critical acclaim and a lasting legacy as a classic action thriller.