I have to write a short screenplay for a class. We must have a science fiction idea. It can be funny such as this sketch on SNL called Laser Cats. http://youtube.com/watch?v=K3qUcPEIw2c My friend already took that idea . It just has to have a basic beginning, middle, end. Please help if you can think of any science fiction ideas. Even a good conflict would be helpful. Thanks!