Real age of Trey Parker in The Spirit of Christmas
In the movie The Spirit of Christmas, Trey Parker was:
25 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 Spirit of Christmas was released:
January 1, 1995
And the day in which Trey Parker was born:October 19, 1969
Since movies usually don't take more than one year to be released since the beginning of the filming process, Trey Parker may have been one year younger or one year older than the shown age while some scenes of the movie were being filmed.