Real age of Joseph Gordon-Levitt in Don Jon
In the movie Don Jon, Joseph Gordon-Levitt was:
31 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 Don Jon was released:
January 1, 2013
And the day in which Joseph Gordon-Levitt was born:February 17, 1981
Since movies usually don't take more than one year to be released since the beginning of the filming process, Joseph Gordon-Levitt may have been one year younger or one year older than the shown age while some scenes of the movie were being filmed.