10 Sci-Fi Movies That Confused Everyone

10. Prometheus (2012)

While Alien had an understandable main plot to follow and intriguingly mysterious side-content for fans to chew over, Prometheus made the mistake of making its central narrative filled with too much unexplained material.

The entire film is focussed on the 'Engineers' that are hinted to have created life on Earth, and throughout the runtime, we are given glimpses of their culture, weaponry, and abilities. The film does an exceptional job hyping them up, and when the crew finds one alive you're positively giddy to get a chance to hear what it has to say.

However, we barely get a look at the thing before it goes on a killing spree and then begins to prepare to target Earth for what we can only assume is to cause more terror. He participates in a brief fight with our lead character before getting taken out by a newborn Alien that was introduced to the film ten minutes previously.

That's it. We don't hear a single word from our creators after all that build-up and no explanation for the strange black goo, the reason the engineers disappeared, or why they made us at all. It infuriatingly just left audiences with more questions than answers.

Oh, and if you were hoping they explain it in Alien: Covenant, you're out of luck, because the engineers are wiped out within ten seconds of Michael Fassbender finding them without so much as a handshake. Go figure.