I discovered the following footage of J. M. Barrie at J. B. Priestley's home in 1932 (https://youtu.be/NPWmr94jhY4 ) . I found this video a while back and then lost it and found it again. I believe it is from Priestley's webpage https://jbpriestley.co.uk/
Like Barrie, Priestley was a playwright. Priestley's plays often focus on a time slip, so that past, present and future are all connected in one scene. After Barrie's death, Priestley gained recognition on radio with his series of short propaganda pieces in 1940, during the Battle of Britain.
Does anyone know more about the friendship of Barrie and Priestley?