Many objected against Warren Beatty hiring Composer Ennio Morricone to write the score for the film. One of the reasons was his hefty fee of about a million dollars and Beatty eventually won out over his producers. Despite all of this, Morricone only has a little more than ten minutes of his complete score featured in the final cut of the film which largely dominated by rap music and other source music. Morricone was not pleased with the end results of the film and what Beatty had done to his score.
Warren Beatty held a private screening of this film for Professor Cornel West. Beatty was unsure if he wanted to release the film and asked West's opinion. West praised the film and told Beatty that it needed to be seen.
There was a sequel in development named, "Bulworth 2000," satirizing the 2000 Presidential Election, that was canceled.
Co-screenwriter Warren Beatty was described by writing partner Jeremy Pikser and biographer Peter Biskind as so insecure about his script that he went to former collaborator Elaine May with the script. She told him it wasn't any good but Beatty suspected that because May was writing the script to a rival political satire, Primary Colors (1998), that she was looking out for her own interests.
George Hamilton: Uncredited, as himself / George Hamilton. Before he is briefly seen in the movie, he is foreshadowed in the film's script by being referenced at one point in the movie's dialogue.