Billion-Dollar Brain was filmed as Billion Dollar Brain in 1967, the third installment of the Harry Palmer series of films based on Deighton's novels, featuring Michael Caine; it was a commercial flop. Billion-Dollar Brain Billion-Dollar Brain is a 1966 Cold War spy novel by Len Deighton. It was the fourth to feature an unnamed secret agent working for the British WOOC(P) intelligence agency. It follows "The IPCRESS File" (1962), "Horse Under Water" (1963), and "Funeral in Berlin" (1964). As in most of the author's novels, the plot of "Billion-Dollar Brain" (1967) is intricate, with many dead ends. The unnamed protagonist is ordered
The IPCRESS File program in Canada. Deighton's protagonist is nameless; this is maintained through all the sequels (although later in the series called "Charles"). Early in the novel we learn that he worked for Military Intelligence for three years before joining his present agency – WOOC(P) – as a civilian employee. WOOC(P) is described as "one of the smallest and most important of the Intelligence Units". (It is never stated exactly what the initials stand for, although his previous boss refers to it as Provisional.) We also learn in passing that he is from Burnley, Lancashire, and that he was born in 1922