When talking about some of the best sci-fi movies out there, it's hard not to miss one every now and then. There have just been an absolute ton of sci-fi movies that have been released over the years. That's because the subject is one that has so many different stories and ideas to pull from. Whether talking about robots, aliens, cloning, or something else, it's hard to think there's ever going to be an idea that comes from science fiction that won't or hasn't already made it to the big screen.