Real age of Harvey Keitel in The Duellists
In the movie The Duellists, Harvey Keitel was:
37 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 Duellists was released:
January 1, 1977
And the day in which Harvey Keitel was born:May 13, 1939
Since movies usually don't take more than one year to be released since the beginning of the filming process, Harvey Keitel may have been one year younger or one year older than the shown age while some scenes of the movie were being filmed.