Editor Walter Murch on the Golden Ratio, Recreating a '70s-era Editing Room and The Conversation

Watching a documentary on film history, editor Walter Murch was struck by how different cinematographers tended to frame faces in close-ups similarly. “I noticed something peculiar,” he said. “No matter what the film was, the eyes of performers in close-up seemed to float along the same line from shot to shot.” Murch tested his theory by tying a string of knitting yarn across his television screen. Dividing measurements from above and below the line gave him 1.618, a number that represen...