Rachael Taylor was 18 in The Mystery of Natalie Wood when she played the character 'Maryann Marinkovich'.
That was over 20 years ago in 2004.
This was her first recorded movie acting credit (although may not technically be her first actual acting role).
Today she is 39, and has starred in 23 movies in total, 22 of those since The Mystery of Natalie Wood was released.
In The Mystery of Natalie Wood, I think Rachael Taylor looks: