The first 20+ minutes are black & white, as are the last 5 or 10 minutes, as one would expect for WWI footage. In between there is one hour of pristine color footage with sound recording and all. I'm pretty sure Jackson somehow got his hands on a time machine and brought modern equipment with him. Of course, since such devices are still classified, they had to concoct a cover story about "restoring" footage. The use of a cover story also sidesteps the bigger ethical issue of not having just created a compelling reason for Archduke Ferdinand to avoid traveling to the Balkans. Anyway, the film brings to life and brilliantly tells the soldiers' story of WWI.