“Spaihts’ draft is very similar to the finished film in many ways – except the finished film ruins or dumbs down aspects of his script. They’re on LV-426 in his draft. The guys who get lost in the pyramid? The script acknowledges the stupidity and makes it a character moment. It includes this great line: ‘To Milburn and Fifield. The first human beings to freak out, get lost, and sleep in their suits in the ruins of an alien civilization.’
“The ship isn’t called Prometheus. The connection between human and Engineer DNA is explained. The construction of the pyramids on Earth is explained! The scientists don’t get stupidly bummed out when they find the Engineers dead – they’re excited by what this means for science and understanding! Weyland wants to find the Engineers not for dumb eternal life, but for terraforming technology! And the end is better!”
Unlike Prometheus, it actually makes sense.