 Sam Hamm (qv)s original screenplay draft had the Penguin and  Catwoman going after hidden treasure. Dissatisfied with that,  Tim Burton (I) (qv) brought in Daniel Waters (I) (qv), writer of  _Heathers (1989)_ (qv), who came up with the concept of an evil  business mogul backing a bid for the Mayors office by the Penguin.