The movie Nanny McPhee is a British family comedy film that was released in 2005. It stars Emma Thompson as Nanny McPhee, a mysterious and magical nanny who comes to the rescue of the Brown family. Cedric Brown, played by Colin Firth, is a widower struggling to raise his seven mischievous children on his own. The children are all badly behaved and have already chased away 17 previous nannies.
Nanny McPhee arrives at the Brown household and immediately takes control of the situation. She uses her mystical powers to instill discipline in the children, teaching them important life lessons along the way. Her methods are unconventional, involving the use of a walking stick and some powerful magic, and the kids are initially resistant to her authority.
But Nanny McPhee is patient and persistent, and gradually the children start to come around. Simon, the oldest of the children, is the most stubborn, but he eventually becomes her biggest ally. At the same time, the family faces other challenges. Cedric's domineering aunt, Lady Adelaide Stitch, threatens to take the children away from him unless he marries Selma Quickly, the conniving scullery maid.
As the plot unfolds, the children learn important lessons about kindness, honesty and courage. With Nanny McPhee's help, they also begin to work together as a team, standing up to Lady Stitch and defying her plans. The climax of the movie involves a hilarious and chaotic wedding scene, where things go wrong in every possible way.
In the end, Nanny McPhee's magic has worked its wonders, and the children have become better behaved and happier. Cedric has also found love with a kind-hearted widow, and Lady Stitch has been put in her place. The movie ends with Nanny McPhee leaving the Brown household, a job well done, but not before leaving a parting message: "When you need me, but do not want me, then I must stay. When you want me, but no longer need me, then I have to go."