Continuity mistake: When Kate and Danielle are talking about Alex down by the river, in most shots Kate's hair is hanging down in front of her shoulder. But in one or two shots, her hair is behind her shoulder without her touching her hair or moving her head. (00:08:45)
Factual error: The police officer introduces himself to Claire as "Officer" Barnes. In Australia, ordinary police officers hold the rank of Constable, not Officer. (00:06:10)
Factual error: The neurosurgeon introduces himself as "Doctor" Woodruff and also has this written on his coat. In Australia, where this scene is set, surgeons are always addressed and referred to as "Mister" after the British fashion.
Suggested correction: We call them doctors as well in Australia, not Mr.