Real age of Alyson Hannigan in Boys and Girls
In the movie Boys and Girls, Alyson Hannigan 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 Boys and Girls was released:
January 1, 2000
And the day in which Alyson Hannigan was born:March 24, 1974
Since movies usually don't take more than one year to be released since the beginning of the filming process, Alyson Hannigan may have been one year younger or one year older than the shown age while some scenes of the movie were being filmed.