Celia Johnson had received her artistic training at London's RADA. In 1928 the first saw her on stage as Sarah in a performance of GB Shaw's Major Barbara. In 1942 she finally made her movie debut. Her biggest cinematic success it had in 1945 with Encounter. To this end, she received an Oscar nomination. Another success achieved Celia Johnson alongside Alec Guinness in 1952 in the film, the key to paradise. In 1968 she retired from the film business.
In her last active years, she was seen a year before her death raised to the peerage, an actress in several television productions, most recently in 1982 number 10th.
Celia Johnson was married from 1936 until his death in 1971 with the script writers Peter Fleming. The couple had three children.