David DeHetre photo CC.
Kermit and Debbie Harry sing "The Rainbow Connection." Answers.com has a response to their question: "Because they are pretty." That Answers.com. So helpful.
This is the film adaptation of Norman Juster's The Dot and the Line: A Romance in Lower Mathematics, directed by Chuck Jones. It won an Academy Award for best animated film in 1965. Juster is better known for his classic children's book The Phantom Tollbooth. Laura Miller interviewed him about the two books back in 2001. Norton, who was born in 1929, is a retired architect and is still writing books -- his latest, The Odious Ogre was illustrated by Jules Ffeiffer and just came out at the beginning of September.