Imogen Poots was 15 in V for Vendetta when she played the character 'Young Valerie Page'.
That was over 18 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 34, and has starred in 45 movies in total, 43 of those since V for Vendetta was released.
In V for Vendetta, I think Imogen Poots looks: