Leon: The Professional (1994)- R

A hitman's life is complicated when, in trying to lose himself in NY, his next door neighbors are murdered, leaving behind their orphaned daughter, Matilda. Leon takes her into his home but his "secret life" is quickly exposed. Intrigued, Matilda implores Leon to help her learn his "art" so as to avenge her family.

Directed by: Luc Besson.

The cast includes: Gary Oldman, Jean Reno, Natalie Portman, Danny Aiello, Peter Appel, and Elizabeth Regen.