Real age of Mamie Gummer in He's Way More Famous Than You
In the movie He's Way More Famous Than You, Mamie Gummer was:
29 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 He's Way More Famous Than You was released:
January 1, 2013
And the day in which Mamie Gummer was born:August 03, 1983
Since movies usually don't take more than one year to be released since the beginning of the filming process, Mamie Gummer may have been one year younger or one year older than the shown age while some scenes of the movie were being filmed.