FIRST of all, Percy supposed to be a twelve year old boy. He supposed to be around Daniel Radcliffe’s age when he was first play Harry Potter. And definitely NOT Logan Lerman’s age.
SECONDly, WHERE ARE THE COOL STUFF? Like when Poseidon admitted Percy as his son. Or when Percy, Anabelle and Grover had lunch with Ares (I think that’s cool since not everyone got a chance having lunch with a god of war). Or the Oracle. Or the game Grover played when they were at Vegas. Or the three witches. Or the awesome building to go to the underworld. Or even the superb cabins…
Anyway, yea, the Hydra thing was great (I don’t recall reading about it in the book), though I don’t remember they collected any gems either.
And THIRD, where’s Clarisse? She’s such an important character. She plays quite big part in the books.
FORTH, NO creatures supposed to be able to come into the camp unless someone inside allow them to. What about the creature that showed up out of fire at dinner time?
FIFTH, I thought I saw Hogwarts in the film… I bet you know what I mean.
SIXTH, well… I guess five is enough for now.
Anyway, sorry for the messy grammar. Still learning English..