... weren't enough to pump some life into this film.
The fatal flaw for this sequel was that it didn't take a page out of American Psycho's book -- literally. While the original film was based directly on the 1991 Bret Easton Ellis novel of the same name, American Psycho 2 was based on a completely different script called The Girl Who Wouldn't Die. The sequel was pitched as a movie completely independent of the original, and it wasn't until production kicked off that the producers decide to rework the script with a loose connection to the first film. Even Mila Kunis was unprepared for this movie to be an American Psycho sequel. In 2005, Kunis spoke out about the movie, saying, "When I did the second one, I didn't know it would be American Psycho II. It was supposed to be a different project, and it was re-edited, but, ooh ... I don't know. Bad."
Easton Ellis went so far as to denounce any attempt to turn his novel into an entire franchise, saying, "If they're not careful, they could end up with something like the Pink Panther movies. I've even heard that they were thinking about doing American Psycho In LA, American Psycho In Las Vegas, and making a whole franchise out of it."