Shirley MacLaine was 78 in The Secret Life of Walter Mitty when she played the character 'Edna Mitty'.
That was over 10 years ago in 2013.
Today she is 90, and has starred in 107 movies in total, 15 of those since The Secret Life of Walter Mitty was released.
In The Secret Life of Walter Mitty, I think Shirley MacLaine looks: