That Americans had little respect for other cultures is nothing new, and truth be told it's probably in all of us. The critiques that this film is overtly racist are a bit farfetched though, then again it's a sign of the times and I wasn't surprised to bump into them.
I did wonder why this was made into a film though, as I felt the story would've worked a lot better as a book. The presentation is so dry and boring. Character progression in spades, but film is an audiovisual experience first and foremost and in that respect Coppola fails horribly. If you shoot a film in Tokyo, you simply need to do better.
There's also an overdose of silly Japanese stereotypes, then but it probably could've been worse for a Hollywood film. On the other hand, this is not so much as comedy but a drama, so the bar should be put a little higher. Johansson and Murray couldn't save it for me either, this was quite a big disappointment.