Congratulations @Christine Wheelwright !
Technically atheism isn't a religion, though plenty of people (on both sides) treat it as such. Not that that changes your point.What I was trying to say was that atheism can be as fundamentalist as any other religion.
I've never seen Alien, either, come to that, which is why it took me a while to cotton on to Provincial's story -- I half-remembered Nostromo as a novel by Joseph Conrad, which I've never read (all my failures coming out here!) so googled that and discovered it was the name of the ship in Alien, then everything fell into place.