Sean Young was 19 in Jane Austen in Manhattan when she played the character 'Ariadne Charlton'.
That was over 44 years ago in 1980.
This was her first recorded movie acting credit (although may not technically be her first actual acting role).
Today she is 64, and has starred in 102 movies in total, 102 of those since Jane Austen in Manhattan was released.
In Jane Austen in Manhattan, I think Sean Young looks: