Ella Purnell was 12 in Never Let Me Go when she played the character 'Young Ruth'.
That was over 14 years ago in 2010.
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 17 movies in total, 16 of those since Never Let Me Go was released.
In Never Let Me Go, I think Ella Purnell looks: