Visible crew/equipment: When Detective Hole enters the murderer's cabin you can see somebody running in the snow outside.
Continuity mistake: Throughout the scene at Stukey's, when Helen Mirren is chatting the Syrians' ears off her elbow sticks out of the window at variable length between shots. (00:05:45)
Continuity mistake: Maggie gets downstairs while Henry and her daughter are playing with their phones. The hair goes in front and behind her right shoulder depending on the camera angle. (00:03:00)