After reading Brendan Dawes' "Analog In, Digital Out", I've revisited the colours of "North by Northwest" (see earlier blog post).
Rather than squish every frame to a single horizontal line, this time each frame is squished vertically — see if you can spot the "crop duster" sequence:
[...] messing about with the "North by Northwest" images (see previous blog post), I began to wonder if you could create music from [...]