At its core, C.S. Lewis' is an allegory. It tells the story of a bus ride from hell to heaven. In the book, Lewis meditates on a number of topics, including: Christianity, good and evil, the Bible, judgment, damnation, and, naturally, heaven and hell. To write the book, Lewis drew on authors including Lewis Carroll, John Milton, and St. Augustine.
Upon release, The Great Divorce received nearly unanimous positive reviews. One reviewer said that the book was "typical Lewis" and said that the book was "beautifully written" and said its argument were "sharp." Another remarked that "you should read C.S. Lewis' The Great Divorce" and said that The Great Divorce is a "little but powerful book."
An adaption of Lewis' novel has been stuck in so-called "development hell" for the better part of a decade. Originally scheduled for a 2013 release date, the film is being developed by Stephen McEveety and written by N.D. Wilson. No further information has been released.