Continuity mistake: You see Phil take the coffee mug from the roof of the car and then he goes inside the car. A few seconds later it's back on top, then a few seconds after that it's gone again. (00:15:30)
Continuity mistake: When Cam is talking to Lily, the doorknob looks like it's loose, and in the next shot it is fixed. (00:19:49)
Chosen answer: There was a plain wall at the foot of the stairs in the pilot episode. Thereafter, there is a room, but we have never been shown what's in the room.
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