"The original Alien had these kind of pipes sticking out the back that took it away from just being a man in a rubber suit, but creature designers Alec (Gillis) and Tom (Woodruff) hated them, so we left them off. The very first day we took our Alien on set, Fincher said, "Where are the stove pipe things on the back?", so he had us make some foam ones and glue them on. We made them overnight and they were strapped on with string – this is on a multi-million dollar movie – and when we got on set with them he just said, ‘Take them off’. It was extraordinary."