Mia Thermopolis learns about her father’s history and how to become a graceful princess of Genovia thanks to her grandmother, Queen Clarisse Renaldi, played by Julie Andrews. Anne Hathaway excitedly announced that she’ll star in a third “Princess Diaries” movie. Julie Andrews Says It’s ‘Too Late’ for Her To Do ‘Princess Diaries 3’Getty Julie Andrews accepts the AFI Life Achievement Award onstage during the 48th Annual AFI Life Achievement AwardThe Oscar winner has understandably slowed down on work. Anne Hathaway Says ‘Princess Diaries 3’ Is Moving in the Right DirectionPlayHathaway acknowledged the anniversary of the first “Princess Diaries” movie on Instagram Aug. 11. Thank you all for loving The Princess Diaries as much as I do- I am forever grateful for my PD family!!”