Like 1993’s underrated Fire in the Sky, Xtro incorporates an alien abduction. And, like most cinematic alien abductions, there’s a big bright light and some screaming people followed swiftly by ...

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: ...