I am glad someone (City Hobgoblin) has mentioned the finest war film of them all - Stanley Kubrick's "Paths of Glory". Some (eagles daring etc) are a matter of opinion but this is quite possibly the greatest. It still makes me angry watching it, the corruption in high places and the sheer power of it.
If you've not seen it, and it comes on the film channels, I urge you to watch. No glamorisation, and not much blood, and it's in black & white (adding to the authenticity).
Another of my favourites - has anyone seen it? "The Way to the Stars". When John Mills reads out the poem by the lost pilot it still brings a tear to the eye.
Please someone say you've seen it and make me happy!