The center also fervently embraces mass culture. Its largest acquisition of recent years was the archive of the film producer David O. Selznick, which filled several tractor trailers. It contains hundreds of thousands of photos and documents, plus artifacts ranging from storyboards for Alfred Hitchcock's "Spellbound" based on designs by Salvador Dali to screen tests by Susan Hayward, Lana Turner, Paulette Goddard and Vivien Leigh for the role of Scarlett O'Hara in "Gone With the Wind."