Real age of Hayden Christensen in In the Mouth of Madness
In the movie In the Mouth of Madness, Hayden Christensen was:
12 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 In the Mouth of Madness was released:
January 1, 1994
And the day in which Hayden Christensen was born:April 19, 1981
Since movies usually don't take more than one year to be released since the beginning of the filming process, Hayden Christensen may have been one year younger or one year older than the shown age while some scenes of the movie were being filmed.