‘Crazy Rich Asians’ is an ethnic tale with universal appeal

‘Crazy Rich Asians’ has been the rom-com phenomenon of the year. Laura Harding discusses its success with British star Gemma Chan

There is an old Chinese song that plays in the middle of the box-office juggernaut Crazy Rich Asians. It’s a song that Gemma Chan’s mother had not heard since her childhood, when her own mother used to sing it to her.