How old was Sigourney Weaver in Avatar?

When watching a memorable performance, one might wonder how old a celebrity was at the time. That knowledge can reshape how we view their performance. Let’s reveal how old they were when the cameras rolled.

In the movie Avatar, Sigourney Weaver was:

59 years old

According to our findings, that was the correct age of the celebrity.

Our method involved using the first calendar day of the release year of Avatar:

January 1, 2009

And the birth day of Sigourney Weaver, that is:

October 08, 1949

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