Sci-fi movies tend to create some of the most ridiculous worlds and scenarios imaginable, but that’s what we love about them. We get to see things that perhaps have some basis in a potential future someday, and stir our imaginations greatly, but are far beyond our current grasp. Unfortunately, since it is science fiction and most writers are more concerned with telling an interesting story, scientific accuracy and other real world concerns often get thrown entirely out the window. While most of your favorite sci-fi flicks have a happy ending, in reality many of these happy endings would have been anything but.