"I don't know really. I've always been interested in the small picture instead of the big one, and I've always been interested in relationship pictures"

Adrian Lyne's quote suggests that he is more thinking about the details of a story rather than the total plot. He is more thinking about the relationships between characters and how they communicate with each other. This could be translated as Lyne's preference for character-driven stories, instead of stories that are driven by plot. He is more thinking about the subtleties of the characters and how they engage with each other, instead of the general story arc. This might also be translated as Lyne's preference for stories that concentrate on the human experience, instead of stories that are driven by action or phenomenon. Lyne's quote recommends that he is more thinking about the little minutes that make up a story, instead of the grand plot points. He is more interested in the relationships in between characters and how they communicate with each other, rather than the total story arc.