Will Smith thinks overcoming “unconscious” bias has been one of his biggest challenges. The 53-year-old actor plays Richard Williams – the father of tennis champions Venus and Serena Williams – in ‘King Richard’, and he’s drawn a parallel between his own life experiences and those of the iconic coach, who guided his daughters from Compton to the top of the sporting world. Will said: “It’s one of the hardest barriers to overcome, is an unconscious barrier in someone’s mind.” Will rose from modest beginnings to eventually become one of the best-paid actors in Hollywood. Similarly, the Williams s…