The sad thing is, is that whilst the war was on, they (UK studios), made some corking war films... admittedly most were 'safe' themselves or with a great dollop of propaganda... but they were prolific and actually, occasionally churned out some good stuff. Check out 'Went the Day Well', an excellent film (& clearly where The Eagle Has Landed came from) & given the time it was released, quite chilling.
The war gave the film industry a real sense of purpose & to a point responsability = entertain, uplift, inform/misinform etc which now it seems to lack. The pressure to perform (financially) seems to nail most projects now before they get off the ground unless they have 'mass' appeal, which sadly stories about wars of the past, have lost, to the appeal of celebrity or CGI. :roll: