Ender's Game Part 1 intro

Okay, before  start actually talking about the book, I have to say that I saw the movie. It was cool. So there may be a bias towards the book. However my sister and brother in law love the Ender series (well from what they tell me, it sounds more like a franchise than a series :P) so I decided to get a ticket and board the Ender's Game Hype Train. It was written years ago in 1985 by Orson Scott Card. Yeah that's about it. It's a science fiction story and I already know the plot and the ending (unless the book is different) so I'm really reading this book more so as a gateway into the series than an enjoyable read.