Nanny McPhee and the Big Bang (released in the United States and Canada as Nanny McPhee Returns) is a 2010 family film, it is a sequel to the 2005 film Nanny McPhee. It was adapted by Emma Thompson from Christianna Brand's Nurse Matilda books. Thompson reprises her role as Nanny McPhee, and the film also stars Maggie Gyllenhaal, Ralph Fiennes, Rhys Ifans, Maggie Smith, Asa Butterfield, Bill Bailey and Katy Brand.