Please answer the following question: Generate a question that has the following answer: 12-year-old girl for the following movie plot: Leon (Jean Reno) is a hitman (or "cleaner" as he would rather be known) living a solitary life in New York City's Little Italy. Most of his work comes from a mafioso named Tony (Danny Aiello), who operates from the "Supreme Macaroni Company" retail store. Leon spends his idle time engaging in calisthenics, nurturing a houseplant that early on he describes as his "best friend", and (in one scene) watching old Gene Kelly musicals.Leon is highly motivated and efficient. He kills plenty of bodyguards (Ed Ventresca) so that a fat guy called Fatman (Frank Senger) receives a phonecall threatening him. A dumb blonde (Ouin-Ouin) walks away non-noncommittally and says she will call him later, not wanting to get involved in the matter.On a particular day on his way home, he sees Mathilda Lando (Natalie Portman), a twelve-year-old girl with a black eye and smoking a cigarette, living with her dysfunctional family in an apartment down the hallway. Mathilda's father (Michael Badalucco) attracts the ire of corrupt DEA agents, who have been paying him to store cocaine in his residence, after they discover that he has been stealing some of the drugs for himself. A cadre of DEA agents storm the building, led by a ragged and drug-addicted Norman Stansfield (Gary Oldman). Stansfield shoots Mathilda's entire family with a shotgun; the whore-looking mother (Ellen Greene), the aerobic-obsessed elder sister (Elizabeth Regen) and the friendly little brother (Carl J. Matusovich)- missing Mathilda only because she is out shopping when they arrive. An elderly lady (Jessie Keosian) comes back inquiring what the rackas is about, and Stansfield shoots the glass behind her, but considers her harmless so he lets her be, just barking at her "go back inside".When Mathilda returns with the groceries she was sent to buy and notices the carnage, she calmly continues down the hallway past the open door of her family's apartment, and receives sanctuary from a reluctant Leon. One of the agents () looks at Mathilda, quizzingly, as she has to...
A:
How old is Mathilda?