Just to clear up some confusion

Rating: Null/10 (17 February 2003)

The reason that Bowie/Iggy are fictionalized characters and that there are no David Bowie songs is this:
Bowie refused Haynes the rights to his songs, because he indicated that he would like to do a movie of his own one day. Since the Bowie character then had to be fictionalized, I assume it made sense to fictionalize everything. I believe there was an interview in which Haynes said he was glad in the end because he felt freer.