Ok ok Ok

 What if everything outside was eadible. Dirt, sand, trees and so on. Not only eadible, but also healthy. The world would not be a paradise, but it would be completely different. 

Has there ever been a movie where the animals were the aliens? That would be very cool if written well. It would be horror/ science fiction. The graphics would be amazing. If they can keep making Jurassic Park movies they can try this.