Robbie Williams has opened up about his plans to resit his GCSEs after 'feeling stupid' for most of his life. The Take That singer is currently gearing up for the release of his biopic, Better Man. The movie, which will be released in cinemas on Boxing Day, explores Stoke-born Robbie’s life from childhood until 2003 – the year he broke records by playing three huge gigs at Knebworth to annoy Oasis , who only did two. Director Michael Gracey, who also made The Greatest Showman, said a CGI chimp