These are what we call the 'YMMV items.' Things that some people find in this work. We call them 'your mileage might vary' because not everyone sees these things in the same way. This starts discussions in the trope lists, a thing we don't want. Please use the discussion page if you'd like to discuss any of these items.
Crowning Music of Awesome: The theme song, which shares the title of the film, was written by Sakamoto himself. A vocal version, featuring David Sylvian, is known as "Forbidden Colours". Both musicians have released new recordings of both versions of this song over the 30 years since the song was originally released, and is a perennial feature of Sakamoto's live performances.
Foe Romance Subtext: Buckets and buckets of it. Enough, in fact, that it drives the entire plot.
I Am Not Shazam: People who are not familiar with the film tend to assume that Bowie's character is named Mr. Lawrence.
Irony as She Is Cast: "I wish I could sing" and "I've had no romantic interludes of any real importance" from the mouth of David Bowie. Well, the film was made before he met Iman...
Nightmare Fuel: The scene with the Korean being forced to commit seppukku, followed by the Dutch soldier choking to death on part of his tongue which he has bitten off and swallowed. Way to ram home just whose side you're supposed to be on in this film.
Squick: Hara's description of the incident with the Dutch soldier and the Korean falls into this category.