(From Universal)Using more than 10 percent of our brains would basically turn us into superheroes according to Luc Besson's new movie, Lucy. But if you can get over the eye-rolling premise (that whole 10 percent thing is a ridiculously outdated urban myth at this point), then Scarlett Johansson does look pretty badass in the first trailer, killing lots of dudes, and making very weird things start to happen as her brain's capacity skyrockets. Check out the trailer below along with a few key...
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