Real age of Michael Biehn in Tombstone
In the movie Tombstone, Michael Biehn was:
36 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 Tombstone was released:
January 1, 1993
And the day in which Michael Biehn was born:July 31, 1956
Since movies usually don't take more than one year to be released since the beginning of the filming process, Michael Biehn may have been one year younger or one year older than the shown age while some scenes of the movie were being filmed.