This 2003 best-selling novel by Lauren Weisberger became the basis for a film starring an actress whose breakthrough debut film role was as Mia Thermopolis in what Disney comedy?
The Devil Wears Prada (novel): The Devil Wears Prada is a 2003 best-selling novel by Lauren Weisberger about a young woman who is hired as a personal assistant to a powerful fashion magazine editor, a job that becomes nightmarish as she struggles to keep up with her boss's grueling schedule and demeaning demands. The Devil Wears Prada (novel):  It spent six months on the "New York Times" bestseller list and became the basis for the 2006 film of the same name, starring Meryl Streep, Anne Hathaway, and Emily Blunt. Anne Hathaway: Anne Jacqueline Hathaway (born November 12, 1982) is an American actress and singer. Anne Hathaway:  Her breakthrough debut film role was as Mia Thermopolis in the Disney comedy "The Princess Diaries" (2001).
The Princess Diaries