A friend recommended it to understand why people in certain areas of the world feel more strongly about mass surveillance. For that purpose it's a good movie --

A friend recommended it to understand why people in certain areas of the world feel more strongly about mass surveillance. For that purpose it's a good movie -- not because of its historical accuracy, but because of its plausibility. The motivations of the characters were straightforward, and the technology unremarkable. No psychos or unobtanium needed.