I had a lot expectations about this movie but when i started watching it, it was soon evident to me that the storyline was lifted from a famous Argentinian movie of the 80s called "Hombre mirando al sudeste". And when i say lifted, i mean its almost a copy but no reference to the original is found anywhere nor any info about the script or rights being purchased by American producers/director. It is a pity, because i like Kevin Spacey. But watching so obviously a copy made me feel uncomfortable and ended up hating it. You cant beat (or steal) a classic. Plus, this movie seems to lack some of the deep and uncomfortable questions that the original creates in the viewer; the story is sort of "bleached". So, if you are thinking about watching this movie, go and watch the original version instead. If you have already watched it, go and watch the original too, you won't regret it.
Review of K-PAX
