Real age of Helen Mirren in National Treasure: Book of Secrets
In the movie National Treasure: Book of Secrets, Helen Mirren was:
61 years old
That was the real age of the celebrity according to our calculation.
The calculation of the shown age took into account the first day of the year in which the movie National Treasure: Book of Secrets was released:
January 1, 2007
And the day in which Helen Mirren was born:July 26, 1945
Since movies usually don't take more than one year to be released since the beginning of the filming process, Helen Mirren may have been one year younger or one year older than the shown age while some scenes of the movie were being filmed.