In the short film about the exhibition Roy Lichtenstein: A Retrospective, Dorothy Lichtenstein, the artist’s widow and president of the Roy Lichtenstein Foundation, and Harry Cooper, curator of modern art at the National Gallery of Art, talk about the iconic artist’s signature dots, the wide range of subject matter explored in his art, and the impact of his body of work on contemporary art. The landmark retrospective exhibition is on view at the Gallery through January 13, 2013.