The movie is never as good as the book. It's an assumption that dates back to the earliest film adaptations, when directors were first navigating the task of adapting literary masterpieces to the big screen. To put it mildly, adaptation is an art form the film industry continues to struggle with to this day.
There's no single formula to a failed literary adaptation. In some cases it's studio executives mangling the film so badly that the envisioned adaptation never even sees the light of day. Other times, it's simply a bad marriage between director and material - or between director and studio. And some books are practically impossible to do justice.
Even when a film adaptation succeeds, that's no guarantee the original author will approve. And with the number of great books poorly translated to film, who can blame them for being protective of their work?
But ultimately, this list is about more chances. Just because a book has been badly adapted once - or twice, or three times - doesn't mean someone can't get it right the next time. So which literary adaptation do you think deserves another shot?