Though it doesnt tell the whole story, it gives an aspect of it. This Dark Knight poster shows the horror side of Batman. It gives a creepy tone because of the letters that are red and resemble the exact blood red color. Why So Serious is like a "Whats Wrong?" and villains only say stuff like that in movies when they have the upper hand and want to rub it in. This movie poster shows that Joker will of course be the main baddie and hes a killer.