How old was Rupert Grint in Harry Potter and the Prisoner of Azkaban?

It's common to wonder how old a celebrity was when they starred in a particular film. That knowledge can reshape how we view their performance. We’ve got the answer you’ve been looking for.

In the movie Harry Potter and the Prisoner of Azkaban, Rupert Grint was:

15 years old

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

This age was calculated based on the beginning of the release year of Harry Potter and the Prisoner of Azkaban:

January 1, 2004

And the day Rupert Grint was born, which is:

August 24, 1988

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