Passage: Portman started dancing lessons at age four and performed in local troupes. At the age of 10, a Revlon agent asked her to become a child model, but she turned down the offer to focus on acting. In a magazine interview, Portman said that she was "different from the other kids. I was more ambitious. I knew what I liked and what I wanted, and I worked very hard. I was a very serious kid." On school holidays, Portman attended theater camps. When she was 10, Portman auditioned for the 1992 off-Broadway show Ruthless!, a musical about a girl who is prepared to commit murder to get the lead in a school play. Portman and future pop star Britney Spears were chosen as the understudies for star Laura Bell Bundy.In 1993, she auditioned for the role of an orphan child who befriends a middle-aged hitman (played by Jean Reno) in Luc Besson's film, Léon: The Professional. Soon after getting the part, she took her paternal grandmother's maiden name, "Portman", as her stage name in the interest of privacy and to protect her family's identity. Léon: The Professional opened in 1994, marking her feature film debut.

Question: Which two words best describe the extent to which Portman worked?
very hard