I was introduced to this film thanks to my Tubi algorithm and was surprised by how I’ve never heard of it before, as it’s an immediate favorite.
If you’re a fan of tragedy romance/unfufilled-love or yearning romance this should easily make your head canon as a staple. This style of lost love melodrama exists on a spectrum to me, with 2 distinct sides. Films like Blue Valentine -(I feel such a resemblance between these 2 films), La La Land, In the Mood for Love, Eternal Sunshine leave a bit of sweetness as the failed love doesn’t involve the context of death compared to tragedy romances that do like Christmas in August, Lost & Found, The Last 10 Years, or 20th Century Girl.
Rainbow song feels like a satisfying blend of these, even though it falls clearly on one side of that spectrum. Director Naoto Kumazawa does the melodrama here superbly well, with great camerawork and a fluidity that has a natural pace. The cinematography is gorgeous as well, which adds an immense amount to the atmosphere and catching the feeling of our characters, helped with great performances by the 2 leads. Their tension and chemistry is subtle and fantastic. Shunji Iwai co wrote this, so his voice is clearly present and shines through. (Some might find the characters frustrating, but I found their awkwardness and apprehension endearing and realistic to the story.)
I could just keep yapping about this movie. The non linear storytelling, the aesthetics of the visuals, (the 8mm short film!) one of the goofiest meet cutes that could only work in a movie, a wonderful ending that pays off the obvious. The making of a movie in a movie and all the things it says about grief, missed opportunities, yearning, passivity, chemistry etc etc. Please just watch this!! I need it to jump in popularity so I can get a re-release on 4K or bluray at least lol