Ahh, yes, "the Wall."
How many volumes can be said about what THAT movie says about art?
IMHO, that album and fils single-handedly brought an end to "art rock."
As Buffy the Vampire Slayer asked, after being possessed and liberated by a demon of artistic expression, "Where do we go from here?"
[* If you like rock musicals, you simply must get your hands on "Once More With Feeling," a season 6 episode of Buffy the Vampire Slayer, with the preposetrous premise that the, through a demonic spell, the entire town can't help expressing their feelings through purposely corny, yet actually quite well done, showtunes. It was called by several critics of diverse opinion, "the best episode in the history of television," but it also got significant votes as the shark-jumper episode. And some warning: Significant lesbian content. Oh, and the in-joke is that Enya, a demon who got a human soul, is terrified of bunnies... It seems bunnies witnessed something -- and hence are a symbol of that something -- which is the ultimate horror for demons. (She's gone "good" but still has some habitual odd feelings.)]