Emma Watson's two little twin sisters was chosen to act as young Pauline in the upcoming movie Ballet Shoes. Emma plays the older Pauline. The twins' names are Nina and Lucy, and they turned three last Monday! Ballet Shoes will air around Christmas in the UK. 
You can read more on Emma's official site: www.emmawatsonofficial.com 
 Picture from a Google Search!

Maybe you all knew this already, but I didn't. Emma Watson will play Pauline Fossil in an upcoming BBC movie based on the book Ballet Shoes by Noel Streatfeild! I love that book! It's about three girls that are taken care of by an old man and his niece (if I remember correctly), but when the man leaves on one of his exploring trips and doesn't come back, money runs low. All the while, the three girls develop different interests; Pauline wants to be an actress, Petrova wants to work with engines, nd Posy wants to be a ballerina. The book (and movie) takes place in London in the 1930's.
 http://www.emmawatson-fans.com/home.php has some pictures of Emma as Pauline in school uniform.
Lucy Boynton will play Posy, and Yasmin Paige will play Petrova.
 Lucy (image from telegraph.co.uk)  Yasmin (IMDB picture)
 Emma in uniform

Emma Watson fansite http://www.emmawatson-fans.com/home.php has lots of new photos of Emma. And very interesting pictures from one, or several, photoshoots. Beautiful pictures. Go to the site to see them!