"Set five minutes into the future, Lucy is about the birth of a new kind of superhero. With Scarlett Johansson playing our eponymous ninja with mental superpowers, there's a lot of fantastic action here. … Director Luc Besson is a genius when it comes to visual flair and action, so the action scenes (when we get them) are great. And the first act of the film is possibly one of my favorite superhero origin stories ever. Lucy is a college student in Taipei whose loser boyfriend tricks her into delivering a mysterious suitcase to an even more mysterious group of Taiwan mafia guys. Of course, they immediately kill her boyfriend and then drag her to a hotel room full of other dead people. This whole sequence is fantastic, with Lucy totally out of her depth and Besson interspersing the action with weird nature footage of animals eating each other. The tone is frenetic, ironic, and ultra-comic booky. … For anyone who listened to Johansson's sultry AI voice in Her, the role she plays in Lucy will feel like a reprise — except instead of being a machine who convinces us that she's human, here she's a human who is slowly becoming a machine. The more of her brain she uses, the more she needs to merge with a computer. Eventually, we learn that her destiny is to become an AI of sorts. Which means that she's one of those superheroes with an expiration date, able to kick ass for only a short time before evolving into something incomprehensible and irritatingly mystical. It's this plot point that drives the movie, flailingly, toward an attempt at having a grander message than "kick ass, warp reality, and look damn good.""