LEON

1994: Natalie Portman, then only 13, made her feature film debut in Luc Besson's explosive crime thriller LEON (AKA THE PROFESSIONAL). In the movie, Portman's character Mathilda witnesses the cold-blooded execution of her entire family and vows vengeance.

Empathic hitman Leon (played by French actor Jean Reno) takes the poor orphan under his wing and teaches her how to 'clean'. In exchange, "I'll clean your place, I'll do the shopping, I'll even wash your clothes." Sounds like a fair trade to me.

Sniper 101: "The rifle is the first weapon you learn how to use, because it lets you keep your distance from the client. The closer you get to being a pro, the closer you can get to the client." Only rule: No women, no children.

Crooked DEA agent Stansfield (Gary Oldman) has some of the best - and most bizarre - lines in the movie: "It's when you start to become really afraid of death that you learn to appreciate life... I take no pleasure in taking life if it's from a person who doesn't care about it."