Did you know that the voice that can be heard in the song Yet Another Movie is Humphrey Bogart’s? The line was taken from Casablanca. Did you know that the lines read by the teacher to the laughing class in The Wall movie are actually snippets of Money lyrics? Did you know that there have been numerous references to Pink Floyd in The Simpsons? For example, in one of the episodes, Bart can be seen trying to play Echoes on guitar, but is interrupted by Nelson.