Save for the Predator franchise's Yautja and Alien's Xenomorphs, these are the coolest extraterrestrials to ever grace cinema ...

Thanks to the prequel's controversial changes to Alien's canon, Ridley Scott's most divisive franchise entry left some major questions unanswered.

For nearly five decades, Steven Spielberg has helped define what alien stories mean to movie audiences. Sometimes they arrive as cosmic miracles. Sometimes as existential threats. Sometimes as ...