Review of Downloaded

DOWNLOADING! Once a cause of concern in the industry, yet now a footnote to our all-digital music marketplace. Shawn Fanning and Sean Parker — the latter portrayed by Justin Timberlake in "The Social Network" — seem flummoxed in late-1990s interviews and in court by the lack of foresight in the industry. Director Alex Winter tracks the evolution of our tunes, and current glimpses of Fanning, especially, show how small revolutions can have larger, often disturbing, sound waves.