McCasing

Dame Maggie Smith, Rhys Ifans and Asa Butterfield have joined the cast of Nanny McPhee And The Big Bang, reports Variety.

Franchise star/ screenwriter Emma Thompson will also exec produce the sequel.

The action this time centers on a group of kids who are evacuated from the city to a farm during World War II.

Maggie Gyllenhaal also stars Ralph Fiennes is also in negotiations for an uncredited cameo.

Susanna White is set to make her directing debut when production is scheduled to start this summer.