Real age of Matthew Perry in 17 Again
In the movie 17 Again, Matthew Perry was:
39 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 17 Again was released:
January 1, 2009
And the day in which Matthew Perry was born:August 19, 1969
Since movies usually don't take more than one year to be released since the beginning of the filming process, Matthew Perry may have been one year younger or one year older than the shown age while some scenes of the movie were being filmed.