I want to read the Game of Thrones series, but I keep putting it off. My friend is reading them. He has been reading them for months. They sound awesome, though. I haven't read "Symphony of Ages," but it's going on my list! It looks awesome. As for your question, I think that "The Book Thief" would make a great movie. I mean, it could turn out to be just another WWII movie, but it could also be really awesome. For anyone who hasn't read it...just do. It's amazing. It's a WWII novel narrated by Death, and it's sad and funny and awkward and so completely Markus Zusak. He is probably one of my favourite authors, along with John Green, Douglas Adams, Lemony Snicket (or Daniel Handler. And I don't care if he writes children's books; they're amazing) and J. R. R. Tolkein.
Yeah, but there are a lot of books on the subject, too. I think it stands out among them. Like I said, it could either be just a generic WWII movie, or it could be really, really great.