The Princess Diaries 3

[Sotiris]

Another 'Princess Diaries' Alum Wants to Come Back for Part 3
https://collider.com/princess-diaries-3 ... es-return/

[UmbrellaFish]

Another 'Princess Diaries' Alum Wants to Come Back for Part 3
https://collider.com/princess-diaries-3 ... es-return/

John Rhys-Davies has done so much work over the years, I am surprised and delighted that he remembers PD2 so fondly!

[Vlad]

Please Disney, don't ruin it. Don't make it woke.

[Sotiris]

‘Princess Diaries 3’ team has been ‘castle shopping’ in Europe
https://nypost.com/2025/06/02/entertain ... in-europe/

[UmbrellaFish]

There have been rumors that the new movie will follow the events in the 2015 book "The Princess Diaries, Volume XI: Royal Wedding" and the casting call seems to confirm this.

Disney is currently looking to cast the role of Olivia, to be played by a female 15-year-old actress of mixed race. "Smart, sarcastic, armored, and observant, Olivia Robinson wants to be left alone. After her mother passed away, she withdrew into herself, masking her sadness with caustic wit. But under her prickly exterior, Olivia's natural warmth, compassion and courage to stand up to power is exactly what makes her a natural born leader The only thing standing in the way is herself."

Olivia is Mia Thermopolis' half-sister, who was fathered by her dad Phillipe during a secret relationship. After tracking Olivia down, Mia learns that Olivia's mother had died and that she's being raised by family members, but not treated well. Mia, who is pregnant with twins and planning for her royal wedding, brings Olivia back home with her and ends up in a custody battle for her.

https://www.justjared.com/2025/08/22/pr ... irms-plot/

It does sound like Disney is taking a page from Meg Cabot’s book series here, but it’s unlikely this 15-year old character can be Mia’s half-sister in the universe of the movies.

The books are very different from the films— Mia’s father is still living in the books, whereas in the film series he is deceased prior to the beginning of the first movie. If the third film is set in the present day, it seems unlikely Phillipe could have a 15 year old daughter when he’s been dead for at least 24 years in that timeline. I guess there’s always artificial insemination, but that seems a topic Disney is unlikely to touch upon. So Mia’s connection to the Olivia character will likely be different from that of the books.