Question about Percy Jackson & The Olympians:The Lightning Thief movie?

IN ORDER TO ANSWER THIS QUESTION YOU NEED TO HAVE KNOWLEDGE OF THE
BOOKS.

So when i finish reading Book 1 i was planning on watching the movie.I
don't want any spoilers of the other books so i want to know before i
watch it if the movie just has to do with ONLY Book 1 or it's all the
novels put together or anything else that will make it a spoiler of
the other books?