The "City of Angels," Los Angeles, is one of the world's most important economic and cultural centers, and it is also the second-largest market for modern art in the United States. In this city representing innovation and opportunity, the Hammer Museum is regarded as a cornerstone of the Los Angeles art scene, with its operating budget soaring from $5 million twenty years ago to $25 million today. In this exclusive interview with Ann Philbin, the director of the Hammer Museum, she discusses the changes in the Los Angeles art landscape over the past decade.