When Dave Toschi met Fincher, Fischer and Vanderbilt, Fincher told him that he was not going to make another Dirty Harry (which is loosely based on the Zodiac case).
Kad je David Toschi upoznao Finchera, Fischera i Vanderbilta, redatelj mu je rekao kako ne namjerava snimiti još jednog Prljavog Harryja (koji je djelomično bio temeljen na Zodiacovu slučaju).