In the opening kitchen scene, whilst discussion the holiday to Greece, Charlotte Ritchie's character Alison appears first without a scarf, and then seconds later, with a scarf, with not enough time to put one on.
Meg, Nicky & Alison are talking about the Acropolis with reference to the temple in Athens. The Acropolis is actually the hill upon which the temple sits - The temple is called the Parthenon.