Steven Spielberg’s sci-fi masterpiece is streaming free on YouTube, giving movie fans the perfect chance to revisit a timeless classic for free.

One of the best things about sci-fi is that it’s a genre with something for everyone. There’s horror, fantasy, urban, and space—as well as myriad other ways to explore the science in science fiction.

Looking for the best science fiction movie to watch? Here are three options to choose from!