If you are interested in the traditional world of the Geisha, I recommend a documentary called Hanari Geisha Modern that is currently showing at the Shibuya Uplink X, Tokyo through February 15th.
I saw this documentary here in Los Angeles about a year ago and it was very interesting (previous blog post). It is narrated in english and brings you into the world of the Geisha in Kyoto. According to the documentary website, it is the first time that all Geisha districts in Kyoto were filmed.
What was incredible was that one of the Geisha featured in the film also attended the Los Angeles screening and answered questions after the film.
Here is the link to the page on the current screenings in Shibuya.