Also the alien spacecraft set was made with lots of animal bones. But where HR Giger used old, dry bones for his sculptures, for the set they went to the local

Also the alien spacecraft set was made with lots of animal bones. But where HR Giger used old, dry bones for his sculptures, for the set they went to the local slaughterhouse and collected fresh bones. Those bones were still full of bone marrow which started to rot and stink. Apparently something similar happened on the set of the Texas Chainsaw Massacre. Alien has aged increadibly well, much better than Star Wars with its grotesques creatures that look too obviously like a man in a suit.