 Brief Encounter has a libretto based on which English composer and actor's "Still Life"?
Brief Encounter (opera):  The English libretto by John Caird is based on Noël Coward's play "Still Life" and Coward's screenplay for the 1945 David Lean film "Brief Encounter". Noël Coward: Sir Noël Peirce Coward (16 December 189926 March 1973) was an English playwright, composer, director, actor and singer, known for his wit, flamboyance, and what "Time" magazine called "a sense of personal style, a combination of cheek and chic, pose and poise".
Sir Noël Peirce Coward