Dame Celia Elizabeth Johnson, was an English actress, whose career included stage, television and film. She is especially known for her roles in the films In Which We Serve (1942), This Happy Breed (1944), Brief Encounter (1945) and The Captain's Paradise (1953). For Brief Encounter, she was nominated for the Academy Award for Best Actress. A six-time BAFTA Award nominee, she won the BAFTA Award for Best Actress in a Supporting Role for The Prime of Miss Jean Brodie (1969).

In Which We Serve is a 1942 British patriotic war film directed by Noël Coward and David Lean, who made his debut as a director. It was made during the Second World War with the assistance of the Ministry of Information.