The release of the film comes amid the release of numerous UFO files from the US government over the last few months.

Plenty of alien invasion movies have become box office hits and certified classics, but here are some forgotten alien ...

Don’t expect a straightforward timeline, because continuity is a mess with the Alien and Predator timelines (even if, as in this list, you choose to ignore tie-in comics, novels, and games). Predator: ...