Solo,
from imdb:
Gen. Ripper's belief that putting fluoride in water was a Communist plot to poison Americans is not made up; it was a conspiracy theory believed in so fervently by many in right-wing political circles in the US all through the 1950s and 1960s that many conservative organizations demanded that any local officials who advocated fluoridation of water supplies be charged with treason.
Gen. Buck Turgidson (George C. Scott) was patterned after Chairman of the Joint Chiefs of Staff Gen. Curtis LeMay, who was renowned for his extreme anti-Communist views and who once stated that he would not be afraid to start a nuclear war with the Soviet Union if he was elected President.
The U.S. government dismissed Stanley Kubrick's scenario of an accidental nuclear war as being too far-fetched. However, one scene caught their attention and was shown at a session of Congress: the scene where Group Captain Mandrake (Peter Sellers) is trying to get through to the Pentagon with the code to recall the bombers, and can't because he doesn't have enough change for the pay phone. Congress said it raised legitimate questions about whether crucial information could find its way to the right people during a nuclear crisis.
100 films entry from OOT