Real age of Lena Headey in The Purge
In the movie The Purge, Lena Headey 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 The Purge was released:
January 1, 2013
And the day in which Lena Headey was born:October 03, 1973
Since movies usually don't take more than one year to be released since the beginning of the filming process, Lena Headey may have been one year younger or one year older than the shown age while some scenes of the movie were being filmed.