Real age of Jessica Biel in I'll Be Home for Christmas
In the movie I'll Be Home for Christmas, Jessica Biel was:
15 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 I'll Be Home for Christmas was released:
January 1, 1998
And the day in which Jessica Biel was born:March 03, 1982
Since movies usually don't take more than one year to be released since the beginning of the filming process, Jessica Biel may have been one year younger or one year older than the shown age while some scenes of the movie were being filmed.