Real age of Steve Martin in Grand Canyon
In the movie Grand Canyon, Steve Martin was:
45 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 Grand Canyon was released:
January 1, 1991
And the day in which Steve Martin was born:August 14, 1945
Since movies usually don't take more than one year to be released since the beginning of the filming process, Steve Martin may have been one year younger or one year older than the shown age while some scenes of the movie were being filmed.