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 (film) his kidnapper. Having previously read the file, Palmer realises that they are preparing to brainwash him. He uses pain to distract himself, but after many sessions under stress from disorientating images and loud electronic sounds, he succumbs. Grantby then instills a trigger phrase that will make Palmer follow any commands given to him. Palmer eventually manages to escape and discovers that he is really still in London. He phones Dalby, who is in Grantby's company at the time. Dalby uses the trigger phrase and gets Palmer to call Ross to the warehouse where he had been held. As Dalby and