Nanny McPhee (2005)

Genre: Comedy | Family | Fantasy
Starring: Emma Thompson, Colin Firth, Angela Lansbury

Plot: Emma Thompson stars as a governess who uses magic to rein in the behavior of seven ne'er-do-well children in her charge.

Followed by: Nanny McPhee and the Big Bang (2010)

http://www.imdb.com/title/tt0396752/
http://en.wikipedia.org/wiki/Nanny_McPhee