This is one of those films which nine out of ten would pass by but the tenth would be hooked .... and I am one of the 'tenth'. I liked the Air Force Base setting and although there isn't a great deal of plot, the script is tight and suspenseful. The Aerial sequences are excellent for the period, particularly the mid-air refuelling scenes. This is a film that I am going to own as a DVD someday.
Update: I got a DVD-R of this film in widescreen and watched it again for the first time in over 40 years. I now think it is a slightly better film than I originally thought with competent performances by all concerned. I agree that Kevin McCarthy's cameo as the snooping Major General 'Happy Jack' Kirby adds to the strange appeal of this film and despite the forced accent, Mary Peach is not as annoying as I previously believed. I increased my own rating from the previous 7 to 8.
Update: I got a DVD-R of this film in widescreen and watched it again for the first time in over 40 years. I now think it is a slightly better film than I originally thought with competent performances by all concerned. I agree that Kevin McCarthy's cameo as the snooping Major General 'Happy Jack' Kirby adds to the strange appeal of this film and despite the forced accent, Mary Peach is not as annoying as I previously believed. I increased my own rating from the previous 7 to 8.