Music

For me it was trinitys "cypher!?"

There've been a few YouTube channels over the years that do videos almost exactly like this, using clips from movies/TV to fill in the lyrics to a famous song.

The scripts for most movies are available online, so they'll just search the lyrics line-by-line for a hit, then go dig up the clip from that movie where they said the words. The rest is just manually cutting and positioning all the clips along a timeline, scooching each clip frame-by-frame until the spoken lines sync up with the backing music.

The hardest part would seem to be the process of gathering the movie clips, as you'd have to source each movie somehow. And also navigating the copyright minefield that comes with using clips from hundreds of different IPs.

You may also take a look into plunderphonics which is a whole genre that is close to this concept

Not quite the same, but you may also enjoy watching things like this amv

https://youtube.com/watch?v=SUX9ja5ZY6M

It's an original song, not a recreation, but similar

You'd have to get lyrics, and then cross reference them to scripts, probably not that hard with an LLM; the key is that many of these are recognizable movie scenes and characters that add their own weight, nostalgia, and association to the original song, so putting one together well would be a bit more effort.

Every movie is based on this song.