Continuity mistake: When Vicky is called into the governess' office for biting Jackie Hayes, the pen on the governess' book keeps changing position. (00:01:25)
Continuity mistake: When Edward reveals the blackboard, there are two circles drawn on the board, with nothing between them. In the next shot there gap between them is filled in. (00:07:00)
Plot hole: When the Prime Minister is getting his morning briefing from Sebastian, why does the PM's wife come in with his dinner suit telling him to get ready? He has quite a while till dinner.
Continuity mistake: When Des Kaye is talking to Kieran in the DIY store kitchen, Kieran's dungaree strap keeps changing position on his shoulder. (00:25:45)
Answer: If you keep clicking that card a photo gallery will eventually appear.