I think the movie should be seen as a separate art form to a book. It may have been inspired by the book but does not necessarily have to replicate it. Both have their own intrinsic value and both can be enjoyed independent of each other or both can complement each other - it really depends on the approach of the director. I don't think that a movie should slavishly follow a book but it can sometimes capture the 'spirit' of a book and please fans of the book just as much, depicting its essence in a different way :-)
I think the movie should be seen as a separate art form to a book. It may have been inspired by the book but does not necessarily have to replicate it. Both have their own intrinsic value and both can be enjoyed independent of each other or both can complement each other - it really depends on the approach of the director. I don't think that a movie should slavishly follow a book but it can sometimes capture the 'spirit' of a book and please fans of the book just as much, depicting its essence in a different way :-)