I watched this too, a brilliant documentary that really brought the footage to life and didn't flinch from the horrors of the war.
The thing that sticks with me though is how it didn't preach or give much narration as to the reasons for the war, instead focusing on the everyday life of the soldiers plunged into a new style of warfare.
The voiceovers drawn from real soldiers experiences combined with the restored footage really gave an intense insight into realities of the situations the soldiers faced.
Also the way the soldiers are shown larking about in their downtime makes you realise they are just like us, and the camaraderie between them was the only thing that was keeping them together in the face of despair.
Everyone should see this film.
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MIKE: I've got it! Peter Cushing! We've got to drive a stake through his heart!
VYVYAN: Great! I'll get the car!
NEIL: I'll get a cushion.