I found Alex Rider: Operation Stormbreaker an entertaining, but very silly, movie. I found the plotline a little bit confusing, even though I'd read the book previously, but otherwise, it was engaging and fun. As an action movie, it has a little bit of violence, including a person getting stabbed by a blowfish, martial arts, a person getting attacked by a jellyfish, and gun use. Good for kids above nine or ten years old.