Billion Dollar Brain

Billion Dollar Brain is a 1967 British espionage film directed by Ken Russell and based on the novel of the same name by Len Deighton. The film features Michael Caine as secret agent Harry Palmer, the antihero protagonist. The brain of the title is a sophisticated computer with which an anticommunist organisation controls its worldwide antiSoviet spy network.

Harry Palmer Michael Caine, who has left MI5 to work as a private investigator, is told by a mechanical voice on the phone to take a package to Helsinki. The package contains six virusladen eggs that have been stolen from the British governments research facility at Porton Down. In Helsinki, he is met by Anya Franoise Dorlac who takes him to meet her handler, Harrys old friend Leo Newbigen Karl Malden. Leo is in love with Anya, but Harry knows that she is only pretending to reciprocate. Leo takes Harry to a secret room where a computer issues daily instructions to Leo and Anya. The computer speaks in the same voice as the one which summoned Harry to Helsinki.After determining that he cannot trust either Leo or Anya, Harry is abducted by his former MI5 superior, Colonel Ross Guy Doleman, who coerces him into working once more for the British government in pursuing the conspiracy. Harry is ordered to Latvia where he embeds with some rebels to obtain intelligence for Leos operation. After being captured and left for dead, Harry is extracted from Russia by Colonel Stok Oskar Homolka, an old acquaintance from the KGB. Back in Helsinki, Anya tries to kill Harry while seducing him, then confesses that the computer told her to kill him. Harry locks her in a room and waits for Leo at the computers location. Leo offers to pay off Harry for his trouble, but Harry insists on half of the money Leo is getting from whatever the conspiracy is all about. ........

Source: Wikipedia