I actually liked Nanny McPhee. It was a throwback to the bedtime storybook tales I recall in my wee years. The story was well laid out and taught a solid lesson. My children also loved the film.
And new we get news of a sequel in the form of a poster for Nanny McPhee and the Big Bang
The original film is based on a children’s book series Nurse Matilda, however there are little comparisons past that.
Nanny McPhee is a supernatural figure that teaches increasingly naughty children to behave, and her presence is summed up with her stating “When you don’t want me but need me, I will be here. When you don’t need me but want me, I must go.” And all the while her awkwardly ugly appearance changes through the movie as the kids become better behaved. Eventually they learn to respect their Nanny and love her, but then she must leave.
Presumably the sequel will pick up with the next family with naughty children who need her help.