I am a HUGE fan of the books, and they did miss a few major things in this but if they use it as the prologue it can be salvaged being that Jake was supposed to have gone through the portal once already, also knowing the entire story, it could work and still not effect the outcome of making the entire series. I know that Stephen King wanted to wait for CGI and animation to be where it is today as he said in the 1st book, that was his condition on making this movie. There's got to be someone who can Direct this vision! It was an amazing series!