Roy Lichtenstein became one of the leading artists in the pop art movement after he started using comic book images in his paintings. One of his most well-known pieces, Whamm!, depicts a dogfight between two planes in which one is being shot down. Lichtenstein scales the comic from a few inches across to almost 14 feet. He simplified the colors and changed the type of planes from the original image. He also removed a speech bubble saying "The enemy has become a flaming star!". The fire and smoke from the rocket creates a strong horizontal line leading the eyes from the left to right emphasizing the explosion. Ben-Day dots are one of Lichtenstein's paintings most recognizable features. The tightly grouped dots create a repetitive and mechanical pattern that tricks the viewer into seeing depth where there is none.