Cary Grant was a hoax so sublime his creator struggled to escape him. He was a metaphor, too, for the transformative magic of cinema, for its lies; and for the artifice and social mobility of the 20th century itself.

His real name was Archie Leach, and he could, the critic David Thomson wrote, ‘be attractive and unattractive simultaneously; there is a light and dark side to him, but whichever is dominant, the other creeps into view’.