Watch A Visual Effects Video About Building 'Ender's Game'

Ender's Game fans have waited decades to see Orson Scott Card's classic sci-fi film on screen. Now it's less than two weeks away. Gavin Hood's adaptation, starring Asa Butterfield, Hailee Steinfeld, Ben Kingsley, Viola Davis, Abigail Breslin and Harrison Ford, opens November 1. The film features beautiful visual effects and plenty of practical effects as well, specifically in the highly-anticipated zero gravity battle room scenes.

You'll see how they built the battle room, and lots more, in this new visual effects video called Building Ender's World. Check it out below.

Here's the video. For more on Ender's Game, read my visit to the set. It opens November 1.

In the near future, a hostile alien race called the Formics have attacked Earth. If not for the legendary heroics of International Fleet Commander Mazer Rackham (Ben Kingsley), all would have been lost. In preparation for the next attack, the highly esteemed Colonel Hyrum Graff (Harrison Ford) and the International Military are training only the best young minds to find the future Mazer.

Ender Wiggin (Asa Butterfield), a shy but strategically brilliant young leader, is recruited to join the elite. Arriving at Battle School, Ender quickly and easily masters increasingly difficult challenges and simulations, distinguishing himself and winning respect amongst his peers. Ender is soon ordained by Graff as the military's next great hope, resulting in his promotion to Command School. Once there, he's trained by Mazer Rackham himself to lead his fellow soldiers into an epic battle that will determine the future of Earth and save the human race.