Trivia: Nanny McPhee

  • Fake Brit: Maggie Gyllenhall proudly takes her place on the list of "American actors who can actually do a convincing English accent".
  • Hey, It's That Guy!:
    • A few Harry Potter actors star in these movie, including Imelda Staunton (Dolores Umbridge) as The Chef, Kelly MacDonald (The Grey Lady/Helena Ravenclaw), Dame Maggie Smith (Professor McGonagall), Rhys Ifans (Xenophilius Lovegood) and Ralph Fiennes (Voldemort) in the sequel, and Emma Thompson (Professor Trelawney) as the eponymous nanny.
    • Hey, it's that kid from Love Actually! Otherwise known as Ferb Fletcher.
    • Angela Lansbury is English? Actually, yes, although she's lived in America since she was 15.
    • Maggie Gyllenhaal, Rhys Ifans and Ewan MacGregor in the sequel.
    • It's Mordred from the BBC's Merlin in the sequel!
    • Mr. Darcy/Bertie is raising a family all on his own. And he was about to marry Auntie Una!
  • Retroactive Recognition: Kelly MacDonald as Evangeline in the first movie.
  • What Could Have Been: On the commentary, it's mentioned that the baby originally was supposed to be bouncing in the pot as it got hotter and hotter. They scrapped that when they realized that would be a little too disturbing.