Maisie Williams was 14 in The Olympic Ticket Scalper when she played the character 'Scraggly Sue'.
That was over 12 years ago in 2012.
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 20 movies in total, 18 of those since The Olympic Ticket Scalper was released.
In The Olympic Ticket Scalper, I think Maisie Williams looks: