The Princess Diaries (2001)

For teenager Mia Thermopolis, just surviving each school day is an adventure. But when shocking news about the death of her long-absent father arrives, Mia discovers that he was the prince of Genovia, making her a real-life princess. So begins a comical transformation towards poise and princess-ness, including a media storm, jealous schoolmates and a plot to take over her country.