My mom has never read the book or seen the other adaptations, so she went in completely blind. I have read Dune, but there are a lot of movie and TV adaptations, that I watch without familiarity with the source material, and I really appreciate it when people use spoiler warnings and codes for stuff from the source material. I'm actually planning on watching the Wheel of Time series on Amazon Prime and there is almost no way I'm going to be able to get through Eye of the World before it comes out on the 19th.