How old was Mamie Gummer in Heartburn?

It's common to wonder how old a celebrity was when they starred in a particular film. That kind of trivia can make the viewing experience even richer. Here’s the age that matched the moment.

At the moment the movie Heartburn was being made, Mamie Gummer was:

2 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 Heartburn:

January 1, 1986

And the date of birth of Mamie Gummer, that is:

August 03, 1983

Given that most films are released within a year of production, the actual age of Mamie Gummer during filming may have varied by one year from the shown age.