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: ...

More recently, though, both "Predator" and "Alien" franchises have returned to greatness, and at the same time, seem to be teasing more crossovers. So with that in mind, now is the perfect time to ...