J. B. Priestly: Samuel French, 1932. Also widely
Note—American editions of this play have a slightly different beginning and end (to Priestley’s stated chagrin).
Caesar and Cleopatra, George Bernard Shaw, originally published in 1913, available in various reprints and anthologies.
Peter Pan by J. M. Barrie, originally published in 1928, although it was first performed in 1904 and novelized (under the title Peter and Wendy) in 1920. Also widely anthologized.
Richard II by William Shakespeare (1595-96). Not seen in the film, but referred to by George as a previous production.