Sharon Stone was 21 in Stardust Memories when she played the character 'Pretty Girl on train'.
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 66, and has starred in 115 movies in total, 111 of those since Stardust Memories was released.
In Stardust Memories, I think Sharon Stone looks: