A list from ScreenRant: It's amazing what computer graphics and clever camera tricks can create on the big screen these days. Since the late 1990s, more fantasy films have been made into movies than at any other time. The demand was always there, we just didn't have the technology to pull it off. Even if we have the technical knowledge, however, there are still a few fantasy books out there that are just too twisted, either in subject matter or in terms of visual execution, to be made into movies. Some ambitious directors, producers, and screenwriters have made the attempt a few of these, but have fallen well short. As the tech advances, we may see a few of these stories on the big screen in due time. Spoiler alert, if you haven't read these books yet!