Horrible...
The book was great!
As for the movie... where do I beging...
First of all the character was sopposed to at least start out as a young girl.. Instead they use a girl who is over 20 years old to play the part of a 15 year old?!???! Seriously...
Secondly... very little effort was made. For example, she wears the same outfit the whole movie, yet not a single sign of wear and tear. Also, she wears her shoes on the beach and in the water... who the hell in the world wears shoes in the water?!?!?
Thirdly - terrible acting.
This movie really needs to be remade.