The only known copy of the play was junked in 1968, as was the standard practice of the time, despite the fact that Dylan and lead actor David Warner were by then famous.

[1] Madhouse on Castle Street was commissioned as part of the Sunday Night Play strand which had been running on BBC Television since 1960.

The play was written by Evan Jones, who would go on to write the screenplays for films such as Modesty Blaise and Funeral in Berlin,[2] and directed by Philip Saville.

The play was planned to be recorded in one session on 30 December 1962, but it overran and the Technical Operating Manager told cast and crew to go home, even though they were willing to complete the filming.

Philip Saville had heard Dylan singing "Blowin' in the Wind" to two Spanish au pairs, early one morning while the singer was staying in his house.

[4] As was the usual method of BBC television drama production at the time, the play was produced in a multi-camera electronic studio on video cameras, although it was recorded as a 35 mm film telerecording rather than on videotape.

[1] In November 2008, BBC Radio 2 broadcast a documentary, narrated by Bob Harris, about Dylan's visit to London and the making of the play.