At the age of ten, Watson made her professional acting debut in Harry Potter and the Philosopher's Stone (released in the United States as Harry Potter and the Sorceror's Stone) playing Hermione Granger. She has also appeared in the sequels: Chamber of Secrets (2002), Prisoner of Azkaban (2004), and Goblet of Fire (2005).
In 2007, Watson is set to return to the Potter franchise in Harry Potter and the Order of the Phoenix, reprising her role as the studious, bookish Granger.
Harry Potter and the Half-Blood Prince (2008) .... Hermione Granger
Harry Potter and the Order of the Phoenix (2007) .... Hermione Granger
Harry Potter and the Goblet of Fire (2005) .... Hermione Granger
Harry Potter and the Prisoner of Azkaban (2004) .... Hermione Granger
Harry Potter and the Chamber of Secrets (2002) .... Hermione Granger
Harry Potter and the Sorcerer's Stone (2001) .... Hermione Granger