Good acting and it is good as a stand alone movie but calling this percy jackson is a mistake. If you're going to remake a book into a movie at least have the same plot, literally, the journey they go through is somewhat correct but their aim,the fight scenes, stuff that happens at camp half-blood all factually incorrect. It is sooooo frustrating to watch the movie because everything is wrong so I suggest you watch it and then read the book because nothing would be spoiled for you as the movie has nothing to do with the book. If you watch the movie first at least you won't have to endure the frustration and anger I went through whilst watching the movie.
I would give the movie 0 Stars if I could!