The outrageous life of the American dancer of the 1920s, Isadora Duncan, whom Ken Russell described as "part genius and part charlatan".The outrageous life of the American dancer of the 1920s, Isadora Duncan, whom Ken Russell described as "part genius and part charlatan".The outrageous life of the American dancer of the 1920s, Isadora Duncan, whom Ken Russell described as "part genius and part charlatan".