Weve all seen hacker movies that feature utterly preposterous situations and technology. Were looking at you, Hackers, Swordfish, and The Net.But Blackhat, a high-tech Bourne-type thriller is surprising plausible, and seems almost rooted in reality.The plot is fairly straightforward: formerly incarcerated Nick Hathaway (Chris Hemsworth) is pitted against a malicious hacker causing nuclear disasters, stock market crashes...