A single picture can express something more clearly, vividly, or succinctly than a large amount of words can. I know I'm doing a bad job of capturing the scene by describing it, so just look at this picture from their website—one picture paints a thousand words, doesn't it? You try to have characters give too much exposition. Remember, one picture paints a thousand words, so use the images in your film to tell its story as much as possible.