That movie “They Shall Not Grow Old” about WWI was made in conjunction with additional materials to be shown in schools in England.
That was an amazing film - and the amount of detail they put into it.
I am hoping for further shows. They processed all of the old film into black and white. Then realized that they could only focus on one aspect of the war. So they picked the army.
There are still hundreds of hours of naval, air, domestic and manufacturing films that they could go through and turn into movies.
I recall seing trailers for it while I was at the theater, and thought it would be good to see. We just never got around to it.