Ridley Scott's Prometheus was a gorgeous-looking movie filled with some the most abysmally idiotic characters I've seen in a long while. (e.g., How do you get lost when you have a digital map? Why can't you run diagonally or perpendicularly from danger?) It was less like a prequel to Alien and more like a prequel to Idiocracy. A lot of the problems stemmed from just plain bad/sloppy writing from Damon Lindelof.
The original version of the Prometheus script by Jon Spaihts recently popped up online. Titled Alien: Engineers, it seems like it would have made a better movie than what wound up on screen with Prometheus. Spaihts himself confirmed that this is the screenplay that Lindelof was hired to revise.
I haven't had a chance to read the whole thing, but from what little I've read and the things I've seen online, this is at least a competent story. It has closer ties to the Alien franchise, the stupidity of some characters is acknowledged, and it's just better overall.
To read Alien: Engineers for yourself, go here. (It's a PDF.)
[Via Badass Digest]