When the first "Princess Diaries" was released in 2001, Mia Thermopolis was an immediate hit with fans. The film grossed $165 million worldwide.
And the sequel, which came out in 2004, brought in $134 million globally.
Hopefully, Julie Andrews, who plays Hathaway's queen grandma, will return, as well as her love interest and head of security, played by Hector Elizondo.
And perhaps Chris Pine will reprise his role from the sequel, though he might be busy filming "Wonder Woman" and the Star Trek franchise.
Oscar-winning Hathaway just finished production on "Alice Through the Looking Glass," where she plays the White Queen.