Alien reproductive cycle,.....contrast of the human, Alien, and space jockey cu

Here are some interesting comments on the xeno's life cycle and culture from wikipedia; The origin of the jockey creature was not explored in the film, but Scott later theorized that it might have been the ship's pilot, and that the ship might have been a weapons carrier capable of dropping Alien eggs onto a planet so that the Aliens could use the local lifeforms as hosts. In early versions of the script the eggs were to be located in a separate pyramid structure which would be found later by the Nostromo crew and would contain statues and hieroglyphs depicting the Alien reproductive cycle, offering a contrast of the human, Alien, and space jockey cultures. Alien originally was to conclude with the destruction of the Nostromo while Ripley escapes in the shuttle Narcissus. However, Ridley Scott conceived of a "fourth act" to the film in which the Alien appears on the shuttle and Ripley is forced to confront it. He pitched the idea to 20th Century Fox and negotiated an increase in the budget to film the scene over several extra days. Scott had wanted the Alien to bite off Ripley's head and then make the final log entry in her voice, but the producers vetoed this idea as they believed that the Alien had to die at the end of the film. One scene that was cut from the film occurred during Ripley's final escape from the Nostromo: she encounters Dallas and Brett who have been partially cocooned by the Alien. O'Bannon had intended the scene to indicate that Brett was becoming an Alien egg while Dallas was held nearby to be implanted by the resulting facehugger.[21] Production Designer Michael Seymour later suggested that Dallas had "become sort of food for the alien creature", while Ivor Powell suggested that "Dallas is found in the ship as an egg, still alive." Scott remarked that "they're morphing, metamorphosing, they are changing into...being consumed, I guess, by whatever the Alien's organism is...into an egg." The scene was cut partly because it did not look realistic enough and partly because it slowed the pace of the escape sequence. Tom Skerritt remarked that "The picture had to have that pace. Her trying to get the hell out of there, we're all rooting for her to get out of there, and for her to slow up and have a conversation with Dallas was not appropriate." The footage was included amongst other deleted scenes as a special feature on the Laserdisc release of Alien, and a shortened version of it was re-inserted into the 2003 "Director's Cut" which was re-released in theaters and on DVD.