"Nanny McPhee Returns" is the sequel to the acclaimed 2005 film "Nanny McPhee." In the film, Nanny McPhee is sent to Green family home after the arrival of their two snobby, rich cousins causes the Green children to fight. Nanny McPhee is not the average nanny, however, and uses magic to teach the children valuable lessons. Butterfield plays Norman Green, the oldest of the Green children who is a strong-willed, opinionated young boy.