“Jackson asserts, reasonably, that if the cameramen of the Great War could have shot in color with sound, they would have. But such choices are trickier historically than they may seem. Most people looking at black-and-white footage of the war while it was going on never thought, Oh, if only this were in color, with sound! Any more than looking at it with color and sound now, we say, ‘Oh, but if only you could smell it!'” — The New Yorker