When Walter Woodman and his team were working on one of their latest film productions, they kept hitting a snag. They couldn’t get the character at the centre of their picture, a man with a balloon for a head, to look quite right. “It would draw a face on the balloon and we didn’t really want that,” Mr. Woodman said. “If we even mentioned the word ‘face’ it would put a human face inside the balloon … and so I think we learnt after a while to say ‘the balloon man is expressionless’.”
Source: Lights, camera, algorithm: How artificial intelligence is being used to make films