At the start, when the Foster Brothers are driving towards Jeannie's flat, windows, trees, low level hedges and windows are visible, when the brothers park the car, they are replaced by a grand arch doorway, a wrought iron gate and white brickwork.
When Jeannie goes to phone Jeff to request his help, she has to duck to avoid a low flying object which ends up smashing her TV screen and pushing it from the middle of the table to the back, in the next shot, the TV screen is undamaged and sitting in the middle of the table.
When Jeff and Marty are in the laundrette, Marty's seating position changes between shots.
When Jeannie arrives at the Foster Brothers house, she gets out of her mini and rings the door bell, after she has done that and noticed the door is open, she goes inside and a wall suddenly appears behind her.