The grunt, I presume, is staring at an alien mother ship in the Battle: LA poster. Which looks to me like the same alien mother ship, with modifications, that appeared at the end of Close Encounters of the Third Kind. Which also inspired the industrial-spoke design of the mother ship in District 9. And to some extent the look of the super-tanker Nostromo in Ridley Scott‘s Alien. Would it kill production designers of these films to design spacecraft that looks like it came out of a 1936 Flash Gordon serial? Or out of Forbidden Planet?