from Funeral in Berlin. Shooting Principal photography took place from 30 January to the end of May 1967. Approximately five weeks later, on 26 June, Françoise Dorléac was killed in an automobile accident in Nice, France. It is unclear whether or not her voice was dubbed by another actress, due to her death. Location filming for Billion Dollar Brain took place in Helsinki and other parts of Finland, including Turku. The Riga scenes were filmed in Porvoo, also in Finland. Scenes involving "The Brain" were filmed in Honeywell facilities and featured a Honeywell 200 business computer. The remainder of the film was shot in the United Kingdom. Scenes on the ice were filmed on a disused airfield which was covered with a layer of salt. All other scenes were shot at Pinewood Studios, including the scene where Midwinter's convoy falls through the broken ice - this was done in a giant tank with slabs of polystyrene used to represent the ice itself. The large size of the tank was deemed necessary because of the decision to use real vehicles instead of miniatures. Otto Heller – who had photographed the first two Harry Palmer films – was supposed to shoot the film but would not submit to a medical examination and so the production could not hire him. The final battle on the ice was inspired by Sergei Eisenstein's 1938 film Alexander Nevsky. Michael Caine's brother Stanley made his film debut as a postman in the opening sequence. Russell later said "it was a mistake" to make the film. "I was working with people I did not know. I was not enjoying them. One felt all the time they were working for the producer against me... It was a pity. But only because of the time wasted. You lose a year of your life when you could have been doing something better." However the film was liked by David Picker at United Artists who later hired Russell for Women in Love. Andre De Toth worked on the film as a producer and said Russell ultimately "did a fine job on the film." Soundtrack The score is by Richard Rodney Bennett. To create a relentless, harsh mood, he left out sweet-sounding instruments like violins and flutes and relied mainly on brass and percussion including three pianos, which are featured prominently in the main theme, and later, together with the percussion, create sonorities