I wasn't really sure what to expect from this film - but hey, the poster looked good so why not give it a shot. I was pleasantly surprised to discover that Percy Jackson and the Lightning Thief was created from Greek Mythology. I love anything to do with fairytales and myths, so that gave it a big thumbs up in my book. However, it gave the myths a modern and unusual twist by focusing on the demi-gods who have one human parent and one god parent, and of course our hero, Percy Jackson, is even more special by being the son of one of the top three gods (Zeus, Poseidon and Hades for those who aren't in the know).
Honestly, I didn't enjoy this film as much as I thought I would as while I knew it was an adventure film, it seemed a bit contrived to me. Percy is accused of stealing Zeus' thunder which ends up with him on a quest. That in itself doesn't sound so bad, but the quest to me seemed very, point A (face an enemy), point B (face an enemy), point C (face an enemy), face the main enemy, the end. And the way that Percy defeats all his enemies seemed a little lame to me as most of it was through luck or someone/thing else coming to the rescue.
So I'd say this film is probably fine if you're looking for very light entertainment without much hidden meaning or thought provoking scenes, or for children who know nothing about Greek Mythology (as it's sort of informational) but for me, I prefer a little more depth to my films.