 Screenwriter Shane Salerno (qv) optioned the  Robert Graysmith (qv) book "Zodiac" when he was just nineteen  years old and developed it with Graysmith for several years before  selling it to Disneys Touchstone Pictures in a seven figure deal.  Salerno wrote several drafts of the screenplay before multiple  administration changes at Touchstone derailed the project about the  mysterious San Francisco serial killer, Zodiac.