We’ve gone a bit off topic now but I found this website:-

http://www.aerovintage.com/warlover.htm

It looks as though I must have gone to Bovingdon in mid- to late-October 1961 to see the three B-17s.

The rights to “The War Lover” appear to be with TCM (Turner Classic Movies) but they seem to have no plans to show it on that channel in the near future:-

http://www.tcm.com/tcmdb/title.jsp?stid=3836

Sometimes, TCM include a film’s trailer on their website but apparently not on this occasion.