Real age of Jeremy Irons in The Man in the Iron Mask
In the movie The Man in the Iron Mask, Jeremy Irons was:
49 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 The Man in the Iron Mask was released:
January 1, 1998
And the day in which Jeremy Irons was born:September 19, 1948
Since movies usually don't take more than one year to be released since the beginning of the filming process, Jeremy Irons may have been one year younger or one year older than the shown age while some scenes of the movie were being filmed.