It is interesting to note that the KC-135 is not a Boeing 707, but an offshoot with a narrower fuselage. It is in fact the original Boeing 717, a designation used twice by the company for the modern airliner of the same designation.
What really makes this scene special for me however is that this aircraft on this actual mission was flown by my father who served in the USAF as a career pilot in the KC-135. Depicted here was a training sortie to refuel F-106 'Delta Darts' of the 84th Fighter Interceptor Squadron from the now closed Castle AFB.