The Princess Diaries 3 Cast – Story, Trailer & Release: The Princess Diaries 3 is an upcoming comedy family movie. The film will continue the story of Mia Thermopolis and the royal family of Genovia. Fans have been waiting for the sequel for many years. The movie is currently in development and more details have been revealed about the cast and story.
In this post, you will find out the expected cast details, Story, trailer, release information in simple word.
The Princess Diaries 3 Cast List
Here is the expected cast list of The Princess Diaries 3.
- Anne Hathaway as Mia Thermopolis
- Chris Pine as Nicholas Devereaux (confirmed in the script)
- Robert Schwartzman as Michael Moscovitz
- Julie Andrews as Queen Clarisse Renaldi
Other familiar faces may appear, as author Meg Cabot teased: “There’s a part for everybody, because there’s a thing that happens where everyone has to show up.”
The Princess Diaries 3 Story
The official story has not been announced yet. However, reports suggest the movie may introduce Olivia Robinson, a 15-year-old girl. Fans of the book series believe Olivia could be Mia’s half-sister. In the books, Mia discovers Olivia after learning about a secret relationship involving her father. Mia later tries to help and protect Olivia. The movie is expected to continue Mia’s journey as a princess while introducing new family challenges in Genovia.
Director Adele Lim shared an open casting call in 2025, revealing a new character: Olivia Robinson, a 15‑year‑old girl. Fans quickly connected this to Royal Wedding, the book where Mia discovers she has a half‑sister, Olivia, from a secret affair involving her father. After Olivia’s mother passes away, Mia tries to gain custody, leading to emotional family drama.
This storyline would expand the royal family and bring fresh challenges for Mia as she balances her duties as princess with her new role as sister and guardian. Anne Hathaway confirmed in April 2026 that the film is still in development. She explained that while The Devil Wears Prada 2 took priority, her team has been “chipping away at the script.” Hathaway emphasized that expectations are high, and if they make the film, it must be “knocked out of the park.”
The Princess Diaries 3 Release Date
The movie has not started filming. Author Meg Cabot joked that “Anne Hathaway is making a million movies right now,” so production is delayed. Anne Hathaway confirmed in 2026 that the project is still being developed and the script is being worked on.
The Princess Diaries 3 Trailer
“Watch the trailer for The Princess Diaries 3 here.” There is no official trailer for The Princess Diaries 3 at this time.
“Watch the trailer for The Princess Diaries 3 here when it becomes available.”
Read also: If you follow new series and OTT updates, you may also like these posts on here.
- Onslaught Movie Cast – Story, Release Date & Trailer
- Fifty Shades Freed Cast – Story, Release Date & Trailer
- Toy Story 6 Cast List, Story, Trailer & Release Date
- Sugar Season 2 Full Cast List – Release Date & Characters Details
- Blood Sisters Season 2 Cast – Story & Release Date
- No One Will Save You Cast – Story & Release Date
FAQs: The Princess Diaries 3 Movie
Q1: Is The Princess Diaries 3 movie confirmed?
Ans: Yes, The Princess Diaries 3 is in development, but not yet filmed.
Q2: Who is directing of The Princess Diaries 3?
Ans: Adele Lim is attached as director of The Princess Diaries 3 movie.
Q3: Will Julie Andrews return?
Ans: She has expressed doubts, but has not ruled it out completely.
Q4: What is the plot of The Princess Diaries 3?
Ans: It may follow Mia discovering her half‑sister Olivia and trying to protect her.
Q5: When will it release The Princess Diaries 3 movie?
Ans: No release date yet, as filming has not started.
