Marilyn Monroe was 23 in All About Eve when she played the character 'Miss Caswell'.
That was over 74 years ago in 1950.
In 1962 she died aged just 36, starring in 94 films in her career, 85 of those after All About Eve was first released. If she were alive today she would be 97.
In All About Eve, I think Marilyn Monroe looks: