You and my brother-in-law need to get a life. He has seen the 2 movies and read the books following the viewing of each. He has never read the trilogy before. Anyway, he sits there reading the book and he has pages and pages and pages of notes that he is taking. He is studying the darn thing!
I read the series twice between 25 and 30 years ago and hardly remember anything. So, after seeing only the first one, I at least know who to ask for clarification on anything......... (But he is such a dork....)