The primary reason people search for is geographical marketing. Universal Pictures decided that American audiences might not understand the phrase "The Big Bang" (which refers to a massive thunderstorm and explosive climax, not the cosmological event). Thus, in the US, the DVD cover reads Nanny McPhee Returns .
In the first film, McPhee had five lessons. In this sequel, she has four. The beauty of Thompson’s writing is how seamlessly the lessons integrate into wartime logic: nanny mcphee 2010
Tip: Always search for "Nanny McPhee Returns" (USA) or "Nanny McPhee and the Big Bang" (UK/International) if the 2010 date isn't finding results. The primary reason people search for is geographical
– Nanny McPhee uses subtle, often whimsical magic to teach the children (and adults) concrete life lessons. For example, she makes a pig deliver a message, conjures a motorbike sidecar for herself, and orchestrates a battlefield-style food fight to demonstrate teamwork. Each magical event directly reinforces a lesson about responsibility, kindness, or courage, and her physical transformations (wart, crooked tooth, etc.) disappear only when the children learn to do the right thing on their own. In the first film, McPhee had five lessons
Gone is the Brown family’s manor; we are now at the Green family farm. The father is away fighting, the mother (a brilliant Maggie Gyllenhaal) is struggling to run the farm, and her three children, Norman, Megsie, and baby Sebastian, are absolute terrors. Add to the mix two spoiled, evacuated city cousins, Cyril and Celia, and you have a recipe for complete chaos.