Callie Angell, an authority on the films of Andy Warhol, died on Wednesday in Manhattan, where she lived. She was 62. Angell committed suicide, her father, the author Roger Angell, said. As adjunct curator of the Andy Warhol Film Project at the Whitney Museum of American Art and consultant to the Museum of Modern Art on the preservation of Warhol's films, Angell spent nearly two decades researching, cataloging and restoring films like 'The Chelsea Girls' and 'Empire,' previously viewed only in small circles and pulled from circulation. Her work helped preserve the 16-millimeter reels as part of Warhol's artistic legacy, along with his Pop Art paintings of celebrities and soup cans. Angell was the curator of exhibitions of Warhol's films and wrote the first volume of a catalogue raisonne titled 'Andy Warhol Screen Tests,' which examined the short and revealing film portraits Warhol made of the famous, like Salvador Dali, and the obscure. 'She untangled this web of films and revealed how they were a vital part in Andy Warhol's life as an artist,' said John G. Hanhardt, senior curator for media arts at the Smithsonian American Art Museum. He originally hired Angell to study Warhol's films. Caroline Sergeant Angell was born in Manhattan on Jan. 6, 1948, and was raised in Palisades, N.Y. As a child she was close to her father's stepfather, the author E.B. White. She attended Goucher College and New York University; after leaving school she landed a job at the Anthology Film Archives in Manhattan. Angell was hired at the Whitney as an assistant to the curator in 1979 and rose to curator. She began to work on Warhol's films in 1991. 'Her work has changed the perception of not only Warhol's films and video but every aspect of Warhol's art,' said Donna De Salvo, chief curator at the Whitney. 'It has helped people understand this material and this period, which forms the basis for so much contemporary work.' Besides her father, she is survived by her stepmother, Carol R. Angell; her sister, Alice Angell, of Portland, Me.; and her half-brother, John Henry Angell of Portland, Ore. At her death, Angell was preparing a second volume of the catalog of Warhol's films. 