10 Films That Don't Live Up To Great Premises

10. Prometheus

Say what you will about the franchise post-Aliens, there were attempts made to keep it interesting. Most failed miserably, but few on as many levels as Prometheus, which saw the return of series original Ridley Scott. One unanswered aspect of Scott's 1979 classic Alien was the mystery of the Engineer - a giant, skeletal figure found on the crashed alien-infected ship, seemingly the pilot.

The answer is explored in this prequel with extreme, grueling detail. Amazingly, though, Scott manages to keep the origin of the Engineers vague. It appears they found humanity (why?). It appears they turned on their creation (why?). It appears they were the first hosts of xenomorph-esque beings.

That's to say nothing of the obscenely stupid, random character decisions made with each passing scene; every scientist with expertise in a certain field goes against the very principles of scientific objectivity (a biologist touches an unknown species within seconds of discovering it). You don't even need scientific training to be stupid in Prometheus. If you have a large, round object circling toward you, best to run straight in its path of destruction, rather than dodge to the left or right.