Real age of Ziyi Zhang in Jian guo da ye
In the movie Jian guo da ye, Ziyi Zhang 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 Jian guo da ye was released:
January 1, 2009
And the day in which Ziyi Zhang was born:February 09, 1979
Since movies usually don't take more than one year to be released since the beginning of the filming process, Ziyi Zhang may have been one year younger or one year older than the shown age while some scenes of the movie were being filmed.