I love puppetry and know full well that the movie's made before digital CG and compositing were such easy available tools, but the non-suit xenomorph in ALIEN 3 is so godawful wonky. The optically-composited puppet never looks part of the scene due to different color shadows and visible matte lines. Harryhausen's stop-motion beasts in front of rear projection from decades prior look more in-scene than this "freight train with teeth". Sorry, Fincher, just another thing that just doesn't work in your flick.