The Princess Diaries 3 is moving along with 'incredible team in place' Kathleen Marshall, whose dad Garry Marshall directed the first two Princess Diaries movies, has given an update on the upcoming third film. 23 April 2026 The Princess Diaries 3 is "coming" with "an incredible team in place". Anne Hathaway will return for The Princess Diaries Kathleen Marshall, the daughter of the films' late director Garry Marshall, has revealed the team is working hard on the third movie in the series, and she's "excited to be part of anything" related to the franchise.