I have only seen this movie a few hours ago and am still stunned by simply how incredible it was. Who ever thought anime could be so fantastical? While the plot, at times confusing and going on the border of being a stereotypical anime, is terrific and i couldn't ask for it to be any better. Many reviewers condemned this film because of the randomness and lack of explanation for some parts, but i believe that Satoshi Kon did this on purpose. Kon simply made this movie like a dream; it is colorful, incredible, random, and offers scarce explanations. The film wants you to think about what the meaning of these "dreams" are, instead of telling you what the meaning is, much like what you would have to do with a real dream.
The best part of this film is that it can appeal to the non-anime fanatic crowd. I have seen all a few animes (only hayao miazaki films) so i wouldn't be called a true fan, and am not much into the science-fiction animes and what not that many people seem to love, yet i could not help but fall in love with Paprika.
Please, Please, PLEASE see this movie. Its too incredible to go under-appreciated by the world. Perhaps the best film of 2007, maybe one of the best from the past few years, if you see this movie you will NOT regret it.