Then Alien 3 killed off all ideas of scientific plausibility by letting us see a chestburster come out of a dog and then blow up like a balloon, leaving us to conclude, thanks to conservation of mass, that a full grown alien soldier is made of a polystyrene foam-like substance, weighs less than the average cat and could be kicked around like a football if anyone dared try.  Then we were treated to clichés galore with no less than two Ripley crucifixion scenes, the obligatory attempted rape of the heroine (almost every action movie of the period had one) etc. 

Resurrection was just a superhero movie and that’s about all there is to say about it. 

I’ll give Prometheus a go, but I don’t hold out much hope given Ridley Scott’s output in recent years (Robin Hood vs WWII troop landing craft, anyone?) and I can already see from the promos that the costumes and hardware are more Star Treck than Alien while the cast is more Starship Troopers.  I hope to be pleasantly surprised, but I’d rather go in with low expectations.