Aliens (1986) vs. Jurassic Park: The Lost Word (1997)
Just watched Jurassic Park: The Lost World from 1997. The similarities between that movie and Aliens are striking. Both movies included:
(1) A main character/hero from the original (Ripley/Malcolm), that reluctantly agreed to return to his nightmare world
(2) The same monster (Alien/T-Rex), but then had more of them.
(3) An overconfident, highly equipped team of military/professional characters designed to (kill/capture) the (Aliens/Dinosaurs) that relied too much on technology and firepower. T
(4) An underlying/hidden financial incentive (Paul Reiser bringing back an Alien/Quasi-military team trying to take dinosaurs off the island and Pete Postlethwaite going on the big hunt),
(5) One of the quasi military guys turns out to be a big help (Cpl. Hicks/Postlethwaite)
(6) There was an overly resourceful hidden/hiding little little girl constantly in danger that the good guys were constantly saving (Newt/Malcolm's daughter)
(7) The little girl had parent-like attachment to the main hero (Ripley was like a mom to Newt, and Malcolm was a dad but somewhat detached from daughter)
(8) The Aliens and Dinosaurs were severely underestimated
(9) The Aliens and Dinosaurs end up in a new environment, larger environment (enclosed spaceship vs. open planet colony / enclosed island vs. San Diego).
As Ian Malcolm said, life always finds a way. That includes Aliens.
Update:
Alien Resurrection and Jurassic World: Fallen Kingdom also have similarities, such as cocky scientists attempting to resurrect a beast that wreaked havoc on multiple people in prior movies. And storing the beast in an enclosure that clearly will not hold it. Really stupid move.