Real age of Michelle Williams in My Week with Marilyn
In the movie My Week with Marilyn, Michelle Williams was:
30 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 My Week with Marilyn was released:
January 1, 2011
And the day in which Michelle Williams was born:September 09, 1980
Since movies usually don't take more than one year to be released since the beginning of the filming process, Michelle Williams may have been one year younger or one year older than the shown age while some scenes of the movie were being filmed.