Real age of Seth MacFarlane in Movie 43
In the movie Movie 43, Seth MacFarlane 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 Movie 43 was released:
January 1, 2013
And the day in which Seth MacFarlane was born:October 26, 1973
Since movies usually don't take more than one year to be released since the beginning of the filming process, Seth MacFarlane may have been one year younger or one year older than the shown age while some scenes of the movie were being filmed.