 I'm Adam Holtz, and you're listening to Plugged In on KATV. Once upon a time, I had bigger dreams. Three, two, one. That's going to be you one day, Rex. In the comedy Space Cadet, now streaming on Prime Video, Emma Roberts plays Rex Simpson, a young woman who's always had big dreams. When Rex was younger, she was a scholarly dynamo, so she set her sights on becoming an astronaut.