Even though I enjoyed the book, I actually think Beastly is one of those cases where the film might be better, or at least more believable. The most significant difference between the two is that in the book Kyle really is beast-like, an animal covered in hair, whereas in the film his ugliness is more subtle. I appreciate this because I don't think a live-action version of involving a very hairy man with claws would have had quite the same impact. It does feel like the movie, at least from the trailer, maintains the romance and supernatural twist that Flinn's book is so well known for.
Have you read Beastly? Are you planning to see the film or read the book? If you have read the book, are you looking forward to the movie adaption?