Just got back from They Shall Not Grow Old. While it's a documentary created to commemorate the 100th anniversary of the end of WWI it's very watchable, does not have a documentary feel.
Using only archival footage and images from the time, painstakingly restored footage including fixing frame rate issues to correct the Charlie Chaplain-esqe herky-jerkey and colorizing makes the images look "right" to our eyes. They went to great lengths to lip-read the silent footage and dub in the correct words and sound. The film is narrated entirely by WWI veterans recorded recollections. A little slow to start, it eventually grabs you and you get the whole arc of the war. Really brings it to life.
Peter Jackson created an amazing narrative that drops you right in the trenches of WWI. If you have an interest in the history of it I highly recommend it.
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Chrome warns this may be a phishing site. Well, Duh,... Stupid jerks can't even spell fishing right.