Real age of Justin Timberlake in Shrek the Third
In the movie Shrek the Third, Justin Timberlake 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 Shrek the Third was released:
January 1, 2007
And the day in which Justin Timberlake was born:January 31, 1981
Since movies usually don't take more than one year to be released since the beginning of the filming process, Justin Timberlake may have been one year younger or one year older than the shown age while some scenes of the movie were being filmed.