Real age of Peter Jackson in Valley of the Stereos
In the movie Valley of the Stereos, Peter Jackson was:
30 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 Valley of the Stereos was released:
January 1, 1992
And the day in which Peter Jackson was born:October 31, 1961
Since movies usually don't take more than one year to be released since the beginning of the filming process, Peter Jackson may have been one year younger or one year older than the shown age while some scenes of the movie were being filmed.