Real age of Heath Ledger in Ned Kelly
In the movie Ned Kelly, Heath Ledger was:
23 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 Ned Kelly was released:
January 1, 2003
And the day in which Heath Ledger was born:April 04, 1979
Since movies usually don't take more than one year to be released since the beginning of the filming process, Heath Ledger may have been one year younger or one year older than the shown age while some scenes of the movie were being filmed.