Her first role as an actress was a stunning debut.  It was the 1994 film, The Professional.  She was only twelve at the time.  She played a little girl, named Mathilde who seeks help from a professional hitman.  The breakthrough performance earned her "Best Actress in a Drama" for Hollywood Reporter Sponsored Young Star Award.  

In the Miramax film, Beautiful Girls, directed by Ted Demme, she appeared in only a couple of scenes, but somehow stole the show and she received critical acclaim for her incredible performance.  The comedy also starred Timothy Hutton, Uma Thurman, Rosie O'Donnell.  
  
Now she has established herself as one of the most promising young actresses.