From The Weyland-Yutani Archives:
During Alien's pre-production, Ridley Scott drew up a story board presentation of Alien for 20th Century Fox. These storyboards are known as 'Ridleygrams'. This story board presentation contains scenes and FX shots that were later re-written or dropped due to budgetary reasons.[more inside]
Alex Pappademas and Sean Witzke over at Grantland have a long, detailed, super geeky film-nerd discussion of the Alien franchise. "It's important to note here that this is a nuke-it-from-space kind of conversation in which just about every aspect of the original "Alien Quadrilogy" is spoiled, as are some fairly crucial plot points from Prometheus. The Alien vs. Predator movies are neither spoiled nor discussed, because that would mean acknowledging their existence. Some people will undoubtedly view this as curatorial negligence on our part, but we welcome their scorn. "
Concept art for the Alien 3 that never was - Before the Walter Hill version was shot, entirely in brown, by David Fincher there were many iterations of the Alien 3 script. One of the more exotic ones was the Vincent Ward & John Fasano "monks in space" script, illustrated here. [via io9]