2/5
Luc Besson's Lucy is a sci-fi action movie built on an entirely fictitious and impossible premise. Lucy (Johansson) is a young woman studying in Taiwan who gets tricked into being a drug mule. When the drugs accidentally get released into her bloodstream, she develops the ability to use more than "10% of her brain." Using "more" of her brain apparently gives her superpowers that somehow transcend the laws of physics.
The premise is insane--no one can argue that. But improbable scenarios do not necessarily make for bad movies (see The Lucky Ones, for example). In this one, though, it kinda does. To be fair, the movie has some phenomenal computer-generated special effects and some scenes were just flat-out cool. But that's about all it has going for it. And that doesn't make up for bland acting, stilted pacing, or atrocious writing. The whole affair is pretty tepid for such an outrageous idea. It manages to satisfy just long enough so you don't ask for your money back but not long enough for you to remember anything about it after you finish. If I somehow had the ability to go back in time, I would pass on it.
IMDb link: http://www.imdb.com/title/tt2872732/