Book help

I'm looking for some feedback on my latest book, Culled. The book was inspired greatly after I read The Hunger Games. I still haven't seen the movie, by the way, because I don't want to be disappointed. The book was so good. There's no way a movie could do it justice. Anyway, there are parts of Culled that are quite similar to The Hunger Games. The idea of kids competing in a game to the death came from The Hunger Games. But, I believe my story is different. At least, different enough to make it my own. For those who have read The Hunger Games and Culled, I'd like to get your opinions on if my story is too similar to it.