New documentary cloaks anonymous sources in 'face doubles'
PARK CITY, Utah (AP) — In documentaries, anonymous sources have often been reduced to a shadowy, voice-distorted figure — or worse, a pixelated blur. But a new documentary premiering Sunday at the Sundance Film Festival has, with the aid of advanced digital technology, gone to greater lengths to preserve the secrecy of its sources while still conveying their humanity.
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