I'm sure you have heard about this movie, but i have read a book [and watched the movie, but it's not the theme right now]. It's really cool. Like I'm saying, books are kind of better then movies cause you can learn more in them, know exactly how caracter feels. The book is really great, written for children /teenagers/. I love it. But the good thing about movies is that you can look at actors. haha. E.g., in book, Percy is younger then in the movie. That's good. ^^
Anyway, it's really great. Read it.