The film""s screenplay, by Samuel G.Engel, Sam Hellman and Winston Miller, was taken in part from the 1931 novelWyatt Earp, Frontier Marshalby Stuart N.(Otherwise, the unscrupulous editor ofSpycould uncover some titillating dirt about Tracy""s father Seth and his affair with a showgirl - Tina Mara.Amadeuswas narrated with numerous flashbacks to a clerical Father by what appeared o be either a self-confessed murderer or a complete lunatic.As the chopper flew away, in the distance, Sgt.Elias (with his back to the camera) had pulled his pants down and was checking his groin area for crotch rot, as another looked on.