Sadie Calvano was 13 in J. Edgar when she played the character 'Edgar's Niece'.
That was over 12 years ago in 2011.
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 4 movies in total, 3 of those since J. Edgar was released.
In J. Edgar, I think Sadie Calvano looks: