How old was Anne Hathaway in The Princess Diaries?

There’s something captivating about discovering a celebrity’s age during a defining role. Knowing that can offer insight into their career stage and personal growth. We’re about to uncover that piece of the puzzle.

While The Princess Diaries was being made, Anne Hathaway was:

18 years old

That number reflects the celebrity’s real age when the movie was made.

Our method involved using the first calendar day of the release year of The Princess Diaries:

January 1, 2001

And the known birth date of Anne Hathaway:

November 12, 1982

Because movies often premiere within a year of starting production, Anne Hathaway might have been either one year younger or older while filming some scenes.