Real age of Allison Janney in Juno
In the movie Juno, Allison Janney was:
47 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 Juno was released:
January 1, 2007
And the day in which Allison Janney was born:November 19, 1959
Since movies usually don't take more than one year to be released since the beginning of the filming process, Allison Janney may have been one year younger or one year older than the shown age while some scenes of the movie were being filmed.