Real age of Bruce Dern in Smile
In the movie Smile, Bruce Dern was:
38 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 Smile was released:
January 1, 1975
And the day in which Bruce Dern was born:June 04, 1936
Since movies usually don't take more than one year to be released since the beginning of the filming process, Bruce Dern may have been one year younger or one year older than the shown age while some scenes of the movie were being filmed.