It's a great film and one of the best adaptations of a novel to ever appear onscreen, but if you really know nothing about Ender's Game, and can read at a 9th grade level, honestly go read the book first. The problem is that by the time of Ender's \"final exam,\" it's hard to imagine anyone in the audience sympathizing with Ender's shock that he hasn't really been playing a video game; he and his tween friends have been controlling actual spaceships killing actual aliens by the billions. The immersive, CGI photorealism of the game just looks too real; the audience can't help but accept it as real. Orson Scott Card, who wrote Ender's Game in 1985, was also a producer on this film. The moral of Ender's Game is that ants are people too, so think about that the next time you reach for a can of poison.