Comment by YeGoblynQueenne

>> Lets play with giant worms with teeth, as if in real life those things wouldn't scare the crap out of you even if they weren't alien.

I think the worm thing (I thought of it as a snake, which just goes to show) is the result of an even worse sin than bad writing. I think the scene was deliberately written this way to pander to a certain type of audience member who enjoys watching dumb movies just to point out how dumb they are and thereby feel really clever. It's fan service really.

I'm ... guilty of indulging in that kind of thing myself (calling out movie characters' decisions for being stupid) and I've often stopped to wonder whether I'm not being baited, after all. Sometimes I certainly think I am and in Prometheus the bit with the worm/snake was one such instance.