Léon (Jean RENO) is a deadly and elusive killer. He lives a routine life, alone in New York with a plant until the day twelve year-old Mathilda (Natalie PORTMAN) rings his doorbell and becomes part of his life. An unusual relationship forms as she becomes his protégée and learns the assassin's trade.
Ten-year-old T.S. Spivet lives on a remote ranch in Montana. A gifted child with a passion for science, he has invented a perpetual motion machine, for which he has been awarded the prestigious Baird Prize by the Smithsonian Institution in Washington. He leaves a note for his family and hops a freight train to make his way across the United States and receive his prize…