The Princess Diaries is a romantic comedy film in which Anne Hathaway plays Mia Thermopolis, a socially awkward teenager who discovers that she is the heir to the throne of a small European country. The movie follows Mia's transformation from a clumsy high school student to a poised and confident princess. Hathaway's endearing portrayal of Mia won the hearts of audiences, and the film became a beloved classic. With its themes of self-acceptance and empowerment, The Princess Diaries remains a favorite among fans of all ages.