I'm a bit ambivalent about this film. I didn't hate it, but I don't love it either. The interesting thing about this film is that the trailers sort of sold as a typical revenge flick, but it turned out to be anything but. The premise was a bit goofy, but overall I didn't mind the film just so long as I didn't start comparing it to 2001: A Space Odyssey, because that is what "Lucy" seemed to be trying to imitate in some respects. The end result pretty well showed that Luc Besson is no Stanley Kubrick. The opening sequence with the boyfriend wasn't all that great and the intercutting with the animal footage just felt clumsy. I might think "The Thin Red Line" was kind of boring, but I cannot fault how Terence Malick did the intercutting of scenes of nature with the war footage. It made almost no sense to me, but the result was still poetic cinematography. The only other guy that I can think of where the technique worked rather well was in Guy Ritchie's "Snatch". In this film, it just didn't work all that well. After a while it felt like they were belaboring a point. The shot with the mouse, the trap and the cheese was especially bad.
Johansen did a pretty good job, but I have to wonder why they figure that anyone who unlocks their full mental capacity becomes an emotionless machine. I mean, what are they trying to say? That pyschopaths are operating at a higher level of mental capacity than sane people?
There was one scene that I thought was rather well done. It was the one where she sees how people are connected to the communication network by "data strings". I thought that one was not only a neat visual trick, but rather telling as well, because it shows how tethered we have become through our devices.