I am going to give this book four out of five stars, even though I have seen the movie, countless times. I love the character of Riddick, marooned on a planet with 10 others? He proves to be a somewhat unsettling, unpredictable leader/hero at the worst of times. The book follows the film faithfully, except for one noticeable change. But, it was still full of the horrors, and graphic scenes of monsters, who live in the dark!