I have the film and watch it every now and then. While it is indeed excellent, it is a long way short of covering the art of piano in any complete sense. It is restricted to formal concert pianists and classical music. For example, apparently such playing as ragtime, jazz and related improvised idioms of the twentieth century are not art and such amazing creators and executants as Morton, Waller, Tatum, Joplin, Gershwin do not qualify as great pianists of the twentieth century.I think it important to note this limitation for those intending to buy it. It is very good, but it does only cover classical concert playing and a pretty small number of players within that domain.