the book and while not particularly great and be decent and but this movie completely change it . a lot of the element of the story be consistent between the book and the movie and but dr. ross character go from a creatively write character who live for money and end up cause the volcanic eruption with her greed to a heart on her sleeve damsel in distress who would not do anything if she even catch the slight hint that it might be less than noble . when movie change the book that much but keep the same name and it should be a crime .