The name of the book that Senator Joseph Cantwell (Cliff Robertson) had written was "The Enemy Around Us" whilst the name of the book that former Secretary of State William Russell (Henry Fonda) had written was "The American Vision".
President Art Hockstader:
Y'know, it's not that I object to your being a bastard, don't get me wrong there. It's your being such a stupid bastard that I object to.
At the end of the basement meeting between Bascomb (portrayed by Shelley Berman), Cantwell (portrayed by Cliff Robertson), and Russell (portrayed by Henry Fonda), Cantwell turns from Russell and walks away, and Cantwell's backside is seen 10-15 feet away from Russell before the camera switches back to Russell, and Cantwell's shoulder is seen 1-2 feet away from Russell's face.
During the opening credits, a picture of every single U.S. President appears in order, from George Washington to Lyndon Johnson.
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