Lucy Boynton was 11 in Miss Potter when she played the character 'Young Beatrix Potter'.
That was over 17 years ago in 2006.
This was her first recorded movie acting credit (although may not technically be her first actual acting role).
Today she is 30, and has starred in 22 movies in total, 20 of those since Miss Potter was released.
In Miss Potter, I think Lucy Boynton looks: