]The film""s screenplay, by first-time scripter Bruce Robinson, was adapted from Pulitzer Prize-winningNY Timesreporter Sydney Schanberg""sThe Death and Life of Dith PranfromThe NY Times Magazine.Imposter "Giacomo" - An Unwitting Pawn in he Castle:Sir Locksley was immediately suspicious about "Giacomo": "Your Giacomo seems more the fool than the assassin." Her mission, she explains, is to stop a ruthless chief spy""s smuggling of Air Ministry military secrets out of England to the enemy.Nick politely asks Catherine to "come downtown and answer some questions." She accepts and asks to "change into something more appropriate" in her bedroom.While the two detectives wait for her, Nick picks up an old newspaper on the coffee able which she has conspicuously laid out - with headlines and a photograph of himself:COP CLEARED IN TOURIST SHOOTING - Grand Jury Says Shooting Accidental.