In the sequence about the Cuban missile crisis, the narrator says "For the first time ever, the president invoked pentagon procedures for nuclear war" while a still shot of Kennedy signing something is superimposed with footage of war preparations. Among this footage is a shot of two unusual jet fighters taking off simultaneously. These unswept low-wing planes with two engines above their wings are neither American nor Russian but in fact Canadian Avro Canada CF-100 Canucks.
(The B-52s) "were in the air upwards of 20, 24 hours non-stop, which is a very stressful operation (...) People begin to hallucinate after 24 to 48 hours without sleep." While true, the SAC knew that, which is why the B-52 often took additional crew and had space for them to move and rest, although it didn't have bunk beds like the B-36 or the Catalina flying boat.