Real age of John Krasinski in State and Main
In the movie State and Main, John Krasinski was:
20 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 State and Main was released:
January 1, 2000
And the day in which John Krasinski was born:October 20, 1979
Since movies usually don't take more than one year to be released since the beginning of the filming process, John Krasinski may have been one year younger or one year older than the shown age while some scenes of the movie were being filmed.