Grace Caroline Currey was 6 in The Mystery of Natalie Wood when she played the character 'Young Natalie wood'.
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 27, and has starred in 12 movies in total, 11 of those since The Mystery of Natalie Wood was released.
In The Mystery of Natalie Wood, I think Grace Caroline Currey looks: