Now, if you're a fan of the film, then you'll simply love this. It differs slightly from the film in some areas, which adds a little twist and makes things more interesting. The characters too are more developed, with an insight into what they're thinking, and what makes them tick.
Put simply, if you have the film, then you should own this, it's a fabulous tie-in. To those who haven't seen the film but have an interest in Batman, it's still worth getting, as it's a fantastic story and works well on it's own as a novel as it does as a tie-in.