Given scene/plot descriptions from movies or TV shows, and given a specific question about the scene, summarize the question into a title

Q: In the movie Baby Driver, in the Coffee Run scene, some of the lyrics of the song are plastered in graffiti on the walls while the main character walks to the coffee shop.     Has this ever done before or was Edgar Wright the one who created it?

A: Has this "lyrics with song" style of scene ever been done?
****
Q: After seeing Men in Black III, I still don't understand why K became such a cranky, stoical figure. It is a question even Agent J was puzzled about!

A: What happened to Agent K to make him so grumpy and emotionless?
****
Q: In Dark City, everybody seems to have memories of Shell Beach planted by Strangers which doesn't even exist. It also gave the main character a reason for searching it. But why did the Strangers imprint the memory of Shell Beach when they were not even supposed to remember where it exists? Why did the Strangers make this memory loophole?

A:
Why did the Strangers make up Shell Beach in human's heads when they were not even supposed to go there?
****