Terry Gross

Hes professor of Neurology at Harvard Medical School and Director of the Massachusetts General Hospitals Genetic and Aging Unit. In the early 80s, Tanzi worked on an experiment that made disease genes identifiable. Since then, Tanzi has been on the forefront of Alzheimer research. His new book is called Decoding Darkness: The Search for the Genetic Causes of Alzheimers Disease (Perseus Books).

Sheehan reviews "Shadow of the Vampire."

His film is "Cecil B. Demented" has just been released on His film is Cecil B. Demented has just been released on video and DVD. Its about an underground filmmaker and his cult following who declare war on bad cinema by kidnapping a starlet and forcing her to star in their own film. Waters other movies include, Pecker about a young amateur photographer who becomes the darling of the New York art world; Cry Baby, a juvenile delinquent love story set in the 1950's, which brought together such performers as Patty Hearst, Johnny Depp, Ricki Lake, David Nelson, and Polly Bergen.