Real age of Will Arnett in Monster-in-Law
In the movie Monster-in-Law, Will Arnett was:
34 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 Monster-in-Law was released:
January 1, 2005
And the day in which Will Arnett was born:May 04, 1970
Since movies usually don't take more than one year to be released since the beginning of the filming process, Will Arnett may have been one year younger or one year older than the shown age while some scenes of the movie were being filmed.