Then you got the prequels.
Prometheus with the whole creation and human greed/pride theme.
Trying to go to a place of the gods, Tower of Babel style. And begging for eternal life.
There's Jesus who was an Engineer at some point.
Alien:Covenant more of the same with even a religious related word in the title and references to Paradise Lost.
What about Predator?
An angel of vengeance sent from Heaven above to collect souls of the most violent humans.
AvP: the aliens are demons, the predators angels, it's demons vs angels. And it's up to the humans to choose between wrong or right.
BAM! Franchise religionized.
Spoiler
...or did I just reveal what's always been there? Cue X-Files theme.