Spielberg's movie is a prime example of good entertainment, but the novel is much darker and has so much more to offer (better events prior to the main story, more believable characters, Malcolm's injury, Nedry's introduction and demise, realistic kids, Raptors turning the tables on Sattler and the others during the blackout).I wouldn't mind a reboot closer to the book.
The only problem is that it needs much more time than a standard movie to tell its story (e.g., the audio book is almost 14 hours long).