Analysis of information sources in references of the Wikipedia article "The Ghost Writer (film)" in English language version.
Oddly, as co-adaptors, Polanski and Harris have played down a character carefully signalled in the book. In the film, the 94-year-old Eli Wallach plays an elderly Vineyard resident who gives the ghost writer some vital information concerning the cove where the previous writer's corpse washed up. In the novel, he is clearly identified as the former secretary of state Robert McNamara by his rimless glasses and hairstyle, his statement about war crimes ("We could all have been charged with those. Maybe we should have been.") and a reference to a real event in 1972: "Hell, a guy tried to throw me off that damn ferry when I was still at the World Bank." This explains Harris's curious, ludic choice of the name McAra for the original ghost in the novel.