The chest burster scene holds up, up until the baby alien scurries off at the end. But there's a hilariously terrible effect later on where it cuts from a model

The chest burster scene holds up, up until the baby alien scurries off at the end. But there's a hilariously terrible effect later on where it cuts from a model of John Hurt's head to the real thing. Edit: Ian Holm, not John Hurt. https://www.youtube.com/watch?v=VA8jv1M6Y2g https://www.youtube.com/watch?v=VA8jv1M6Y2g