Léon: The Professional is streaming on Sundance Now and Sony Pictures Core. It's also free to watch on YouTube and Tubi. You can also rent or buy it digitally.
Léon, the top hit man in New York, has earned a rep as an effective "cleaner". But when his next-door neighbors are wiped out by a loose-cannon DEA agent, he becomes the unwilling custodian of 12-year-old Mathilda. Before long, Mathilda's thoughts turn to revenge, and she considers following in Léon's footsteps.