And anyone who's read the shooting script for Alien
knows how much changed from page to screen. That was all Ridley Scott. We have yet to see the shooting script for Prometheus
, so we don't know how much Scott changed on the set or in ADR/editing (or left on the cutting room floor for the Blu-Ray). Clearly if Scott wasn't happy with Lindelof's script, he would have thrown it out and hired someone else.