If you haven’t read the classic sci-fi book Ender’s Game (and its many sequels), you’ll have a lot to catch up on in the movie version of the story, which comes out Nov. 1. It takes place in the future, years after an alien invasion by the “formics.”
To help you get the timing straight, if you want to study up beforehand, check out this exclusive infographic of the Ender’s Game chronology.