Real age of Sienna Guillory in The Future Lasts a Long Time
In the movie The Future Lasts a Long Time, Sienna Guillory was:
20 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 Future Lasts a Long Time was released:
January 1, 1996
And the day in which Sienna Guillory was born:March 16, 1975
Since movies usually don't take more than one year to be released since the beginning of the filming process, Sienna Guillory may have been one year younger or one year older than the shown age while some scenes of the movie were being filmed.