I was actually looking through my scripts for musicals and I found that a very good candidate for a musical, albiet mature, would be Jekyll and Hyde. I really think it could work. Think about watching Hyde sing "Alive" convulsing and running amuck through a red sky version of a dark and gloomy version victorian london or watching Dr. Jekyll mixing potions and his laboratory whirling around and in the name of science with Jekyll singing "This is the Moment" In fact, "Murder Murder" would be an awesome piece with hundreds of london folk with torches and swords and weapons destroying London with hyde going behind the scenes killing everyone. It would also show a dark and twisted version of the poor and rich as just shadows. With the right studio I think it could potentially be a really good movie