Real age of Jerry O'Connell in Jerry Maguire
In the movie Jerry Maguire, Jerry O'Connell was:
21 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 Jerry Maguire was released:
January 1, 1996
And the day in which Jerry O'Connell was born:February 17, 1974
Since movies usually don't take more than one year to be released since the beginning of the filming process, Jerry O'Connell may have been one year younger or one year older than the shown age while some scenes of the movie were being filmed.