Kelly Reilly was 18 in Poldark when she played the character 'Clowance Poldark'.
That was over 28 years ago in 1996.
This was her first recorded movie acting credit (although may not technically be her first actual acting role).
Today she is 46, and has starred in 37 movies in total, 36 of those since Poldark was released.
In Poldark, I think Kelly Reilly looks: