Here comes the stolen movie image, thwarted by antibootlegging technology. (Courtesy of Thomson)

In a few years, if you're in a theater watching some sci-fi robot thriller, a real-life battle of the machines might unfold quietly before you: gadgets at the front of the house may seek out the optical signatures of bootleggers' camcorders, then fire narrow beams of light directly into the lenses, blinding the cameras and saving the day for Hollywood's bottom line.

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