Samantha Mathis was 17 in Forbidden Sun when she played the character 'Paula'.
That was over 36 years ago in 1988.
This was her first recorded movie acting credit (although may not technically be her first actual acting role).
Today she is 53, and has starred in 49 movies in total, 47 of those since Forbidden Sun was released.
In Forbidden Sun, I think Samantha Mathis looks: