Real age of Christian Slater in He Was a Quiet Man
In the movie He Was a Quiet Man, Christian Slater 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 He Was a Quiet Man was released:
January 1, 2007
And the day in which Christian Slater was born:August 18, 1969
Since movies usually don't take more than one year to be released since the beginning of the filming process, Christian Slater may have been one year younger or one year older than the shown age while some scenes of the movie were being filmed.