How old was Mary Steenburgen in Back to the Future Part III?

The age of a celebrity during a film’s production often sparks interest among fans. It helps us understand the context in which they took on the role. We’ve tracked down that detail for you.

During the filming of Back to the Future Part III, Mary Steenburgen was:

36 years old

After checking the dates, that’s the calculated age of the celebrity.

The age shown reflects the celebrity’s age as of the start of the release year of Back to the Future Part III:

January 1, 1990

And the date of birth of Mary Steenburgen, that is:

February 08, 1953

Since movies are typically released within a year of filming, Mary Steenburgen could have been a year younger or older than the displayed age during certain scenes.