Katharine Hepburn was 24 in A Bill of Divorcement when she played the character 'Sydney Fairfield'.
That was over 92 years ago in 1932.
This was her first recorded movie acting credit (although may not technically be her first actual acting role).
In 2003 she died aged 96, starring in 93 films in her career, 92 of those after A Bill of Divorcement was first released. If she were alive today she would be 117.
In A Bill of Divorcement, I think Katharine Hepburn looks: