Despite the movie's title, helicopters, all two of them, appear onscreen for less than four minutes.
The original story was first broadcast on NBC@8:00 p.m. (EDT), October 2 and 9, 1967, as the 93rd and 94th episodes of The Man from U.N.C.L.E. (1964): "The Prince Of Darkness Affair" (Parts 1 and 2).Feature copyright is also 1967.
One of 8 UNCLE movies made.
Aside from Luther Sebastian, all the members of the Third Way, from its high priest to its henchmen and female entertainers, sports a platinum blonde hair.
The comic book being read by the man in Laurie Sebastian's bed is "House Of Mystery" #147, cover dated December 1964.