So most people who have seen the movie version would probably choose not to read the book anymore. But to everyone who have seen the movie and thought it was pretty good (well actually, even to those who didn't think much of it), I advise you to read the book as well.
Because, (to those who have seen the movie), despite the many similarities among the characters and some scenes, the storyline is actually quite different. Which is expected, considering that most screenplays come out different from the book it was based on. Some examples include Twilight, Harry Potter, even A Walk to Remember. I love all these movies, but with, I'd say I appreciate the book version better.It was very interesting, humorous, and incredibly refreshing. Some parts even made me laugh out loud.
I realize that not all people are into all that Greek Mythology stuff--I'm not either! I'm not so much interested or even knowledgeable about the Olympians, their children or the monsters. But I enjoyed the way they were presented in the book. I loved the way every character, and the explanations on their existence were presented simply, but in a way that was neither confusing nor boring. And the plot will keep you guessing till the very end.
The book is full of adventure and mystery. Combine that with funny and fascinating--and you've got yourself something which can be enjoyed by both children and adults alike!