
The Ipcress File novel came out just after the release of the first James Bond film Dr. No (1962). When the novel sold well, EON producers Harry Saltzman and Albert Broccoli approached Deighton to write the script for the next 007 film after Dr. No, From Russia With Love (1963); however, despite Deighton’s efforts, little of his screenplay was filmed. Saltzman instead decided to use The IPCRESS File, and its sequels, as the beginning of a new secret agent movie series. However, unlike the Bond films, The IPCRESS File was designed to have a different, more down-beat, style, although Saltzman employed many Bond movie staff, including production designer Ken Adam, editor Peter Hunt, and composer John Barry; eventually, Michael Caine was chosen to play the lead.
In the film version, Harry Palmer is a British army sergeant forcibly drafted into the security services to work away a prison sentence for black marketeering. He worked first for Army Intelligence then the Foreign Office. He works for the brilliant but slightly duplicitous Colonel Ross. Harry Palmer has much in common with Deighton, including passions for military history (Harvey Newbegin complains about his bookshelf contents in Billion Dollar Brain), cooking, and classical music.