I researched every milieu. If I were to do a movie tomorrow about a fashion designer, say, I would have to spend some time to find out what language they spoke. Because I would never be satisfied with my dialogue, I want something that gives you the color of that character right away.
Movement should be a counter, whether in action scenes or dialogue or whatever. It counters where your eye is going. This style thing, for me it's all fitted to the action, to the script, to the characters.