When Natalie is looking out over London in front of the Alexandra Palace, the tall buildings of central London can be seen to the left. To the right are two massive twin towers which appear to be much closer (somewhere between Camden Town and Islington/Angel). There are no such towers in that area or in the direction toward which she is looking, indicating some sort of composite shot.
Scott's American superior betrays himself on a conference call as a British actor in his very British pronunciation of "anything" amid an otherwise convincing American accent.