I saw the movie Lost in Translation today, and it was very good. It stars Bill Murray as a guy having a midlife crisis in Tokyo, and it features some very nice post-punk, new wave songs from the late 70s and early 80s, which is always a nice thing.
One thing I took away from it was a confirmation of my feelings about Tokyo. I tend to think of Tokyo the same way as a lot of people think of New York. It's the kind of place I'd like to visit for about a day and then want to leave immediately due to sensory overload. Jeffrey said it looked like Times Square on speed, which is fairly accurate. I imagine that living there would be akin to having a syringe of adrenaline injected straight into your brain.
Anyway, Lost in Translation is a fine funny movie. If you can find a place that's still playing it, I'd highly recommend seeing it.