When Jane enters the Tube she takes the train at Aldwych station and the first subsequent stop is again Aldwych. She then leaves the Tube at the following stop which happens to be Holland Park.
When goblet is taken at the black mass and given to Jane to drink, amount of liquid in it doesn't match the previous shot of it, and neither is the liquid the same, probably being wine or something drinkable.
When Jane is running from the restaurant, light get's shown reflected on the camera lens.