What an interesting topic. I happen to be someone who will read the book before I will see the movie version, especially if it's a recent movie then I will RUSH to read the book ASAP! Then there are the occasional movies I saw and did not realize they were originally a book, but here in what order I read the book and saw the movie is irrelevant. I've decided to split my list in half between the best and the worst adaptations.
Worst Adaptations:
Harry Potter series, movies 2-7 (books by J.K. Rowling)
The Hunger Games (book by Suzanne Collins)
The Da Vinci Code (book by Dan Brown)
Best Movie Adaptations:
Gone With the Wind (book by Margaret Mitchell)
Harry Potter and the Sorcerer's Stone (book by J.K. Rowling)
To Kill a Mockingbird (book by Harper Lee)
The Devil Wears Prada (book by Lauren Weisberger)
The Help (book by Kathryn Stockett)
And Then There Were None (book by Agatha Christie)
