Trivia: Throughout the film, lines are very subtly used to divide the Kim and Park families. Ex. Walls, picture frames and other objects with vertical lines often appear between members of either family when both are on the screen. One of the earliest examples is when Mrs. Park is introduced, and we see her outside of a window. There is a very clear line in the window between she and Ki-Woo, implying a sense of separation. Instances like this are littered throughout the film.