My bigger issue, also not having read the book, is based on that trailer, this is not a very interesting sci-fi story, looks like a crappy Hunger Games type kids movie. There's probably a very good reason this hasn't been adapted up till now. Also, it looks totally bland visually, and the trailer doesn't help any by forcing Harrison Ford to do gawdawful narration while flashing Academy Award nominee in front of every cast member to try to tell us we should care.