christhefish, I understand your reasoning, but y'never know!
I mean, hey, let's say an aspiring composer/lyricist such as, oh, I dunno, myself comes along and says, "Hey, I wanna musicalize this one!" -- Get the rights (just sayin') and says, "Well, I would have 2 options: 1 being the motion picture, the 2nd is using the original novel as my scource material. Just tossing it out there, really... Wishful thinking on my part? Perhaps. Hey, let this kid dream big and achieve just the same!