Real age of Corbin Bleu in Galaxy Quest
In the movie Galaxy Quest, Corbin Bleu was:
9 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 Galaxy Quest was released:
January 1, 1999
And the day in which Corbin Bleu was born:February 21, 1989
Since movies usually don't take more than one year to be released since the beginning of the filming process, Corbin Bleu may have been one year younger or one year older than the shown age while some scenes of the movie were being filmed.