Léon: The Professional (1994) - Plot - IMDb
https://www.imdb.com/title/tt0110413/plotsummary/
WEBLeon (played by Jean Reno) lives in New York and is a professional hit man. One of his neighbors, Mathilda (Natalie Portman), is a 12-year old girl with family problems, one of which is that her father is a petty criminal. One day, a drug kingpin, Stansfield (Gary Oldman), kills her entire family due to something her father did.
DA: 92 PA: 30 MOZ Rank: 86