Did the Earth Move For You? - S2-E1
Other mistake: Viv and Phil are waiting in his office for the power to come back on after the earthquake, but you can see lights on in the building across the street. (00:16:30)
Other mistake: We know the girls all go to school together, but when they are walking home in the opening scene, they all meet up coming from different directions.
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Suggested correction: They don't approach from very different directions. All of them are still basically in the same area of lawn and trees. This is possible depending on what they do after exiting the school building. Maybe someone walked in another direction so they could briefly talk to other friends, etc.