Ridley Scott's Black Rain ('89) is a pretty solid cop-film about cultural differences and East-meets-West philosophy. It has beautiful location shooting from Japan plus, as usual, a great Michael Douglas performance.
But it also features an over-twenty years-old Hans Zimmer score, which of course anyone would know is now Christopher Nolan's pen-pal and one of the most acclaimed film composers in Hollywood.
His Black Rain work is firmly rooted in 80's synths and drum machines, but as the film progresses, so does the score, evolving into a more descriptive piece as a whole with underlying themes and chords increasing in their tenacity and at times, resembling some of his modern works. It's a pretty good score and worth checking out Black Rain, which is probably an underrated action/cop thriller in the grand scheme of things.
Check out a comparison video of Zimmer's work on both Black Rain and Batman Begins below, followed by the theme.