Maintaining motion vertices in a film is one of the trickiest parts of the craft. Motion vertices are like invisible lines that track the path of a moving object, in life or on screen, these must not be broken. The reason is because on screen has to match up to life, in that it must mirror life in this case senario, as the film is set in this realm of reality. Besides that motion vertices were maintained throughout the entire film, even during scenes when two characters are on opposite sides of the set, for instance when Romeo is listening to Juliet in the balcony scene. When this occurred they showed Romeo moving towards the camera, therefore towards Juliet, meaning the film production had maintained the motion vertices of Romeo. The underlying
