I expected a film about a man and woman dealing with Japanese libel law and civil procedure. Instead, it's really a story about a weak man who happens to be a lawyer, and it's not particularly interesting.
Michael Mann mixes action and chick flick melodrama over a bloated 170 minutes. I think this would have been a much better (and tighter) film if Heat had just been a action-packed sausagefest. Still, the bank robbery scene is one of the best action sequences ever filmed and that alone is worthy of a recommendation.