Mickey Rooney, who narrates Soldiers' Stories, was chosen because he was a soldier in WWII where he was awarded the Silver Star for his efforts during the Battle of the Bulge.
Soldiers' Stories is the largest most complicated documentary as of its release in Cinema history with a 72MP master representing two eye views of 6000 by 6000 pixels square.
Soldiers' Stories is the oldest 3D theatrical film using 100 year old, original 3D images.
99% of audiences are unaware that 3D existed in WWI. 3D was created in 1840's.
Soldiers' Stories was the first film ever to use current soldiers experiences to narrate the voices of those of 100 years ago who passed away - the idea being that the act of being a soldier is timeless. This was not the first choice, the producers originally tried using actors but it just wasn't the same.