My girlfriend it "put Japan in a bad light", then I pointed out "isn't it pretty much what we did last weekend?", "oh, yeah... still"
It doesn't show the rosy, wonderfulness of Japan, so its a bad movie. At the same time, it shows a truth that exists within Japan. For that alone I think its a wonderful movie.
I think that it's a question of what Chomsky coined (though in a much more insidious sense) "worthy & un-worthy" victims... I think that its the idea of a movie about Japan made by a white woman (who happened to have lived there). Not much would be said if it were a movie which portrayed foreigners in a bad light which was made by a Japanese man.
Here is a movie whos main protagonists couldn't care less about being in Japan, know nothing about it, but somehow through finding each other, (which is the whole point of the movie, that when you are somewhere, anywhere,
alone that it's difficult to enjoy things) that they learn to love the the things that make the country different, or at least come to grips with being there.
There are sweet parts of the movie where you see Bill Murray wearing a yukata, and maybe you remember your first time at onsen (not me... but...), or first time at some aspect of Japanese culture, like matsuri---
I think it's a endearing movie, and I think that there is always room for dialogue about it, but that many people who fly off the handle like the writers at now-defunct "lostinracism.org", are just missing the point entirely.
Ps. If you type in "lostinracism" in google, the second link is a review I did (which follows everyone elses review) of the aforementioned movie on JREF.