Continuity mistake: Interior shots of Ivy's cafe show a window in the back wall of the kitchen, visible through the door to the dining area. Exterior shots of the building show only a plain stone wall where the window should be.
Revealing mistake: When ever anyone leaves or enters the cafe through the front door, it is obvious that the cafe interior is a set and not filmed on location due to the painted scenery seen through the door.
Continuity mistake: Cleggy has at least 2 different sofas and armchairs in different shades of leather, and his letterbox moves from the bottom of his door to the middle.
