From the poison-tipped flick-knife shoes to the ski pole gun and perfume flame-thrower, the gadgets used by James Bond were a vital part of the fictional spy's kit.
Now Dr Christopher Moran, a specialist in US national security at Britain's Warwick University, has unearthed a trove of documents showing the CIA copied some of Bond's devices.
The flick-knife shoes worn by Rosa Klebb in From Russia with Love were copied, as was the homing device planted on Goldfinger's car.
"There was a surprising two-way influence between the CIA and the James Bond novels during the Cold War, stemming from the mutual admiration between CIA director Allen Dulles and Bond author Ian Fleming," said Moran.
In Life magazine in 1964, Dulles described meeting with the "brilliant and witty" Fleming in London in 1959, where the author told him the CIA was not doing enough in "special devices".