As previously reported, Guettel is composing a new musical based on Danny Boyle's 2004 film "Millions." The plot centers on two young British boys who find a bag of cash. "It's just a lovely, funny, sweet, family-oriented musical, which I've never tried to do before. It's a lot easier to write complex than it is to write simple," Guettel told the Times.

Also on Guettel's plate are a musical adaptation of H.G. Wells' 1897 piece "The Invisible Man," the English-set sci-fi revenge tale of a scientist who renders himself invisible; and "Days of Wine and Roses," the 1962 film about a tempestuous, booze-fueled love affair.