The Princess Diaries Disney Movies. For teenager Mia Thermopolis Hathaway, just surviving each school day is an adventure. Then the shocking news arrives that shes 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. For teenager Mia Thermopolis Hathaway, just surviving each school day is an adventure. Then the shocking news arrives that shes 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. The Princess Diaries is a series of epistolary young adult novels written by Meg Cabot, and is also the title of the first volume, published in 2000. The Princess Diaries is a 2001 American comedy film directed by Garry Marshall and written by Gina Wendkos, based on Meg Cabots 2000 novel of the same name. The Princess Diaries' title='The Princess Diaries' />The Princess Diaries. For teenager Mia Thermopolis Hathaway, just surviving each school day is an adventure. Apc Smart Ups 420 Software Download. Then the shocking news arrives that shes a reallife.