Three Blind Mice (radio play and short story)

Three Blind Mice is the name of a half-hour radio play written by Agatha Christie, which was later adapted into a TV movie, a short story, and a popular stage production.
1947 radio production.
The original radio play was broadcast on the BBC Light Programme at 8.00pm on Friday 30 May 1947.
It was part of an evening of programmes in honour of the eightieth birthday of Queen Mary. The BBC had approached the Queen some months before and asked what programmes she would like to hear. Amongst a selection of music and variety, she requested something by Christie who was a writer she admired. Christie agreed, asking that her fee of one hundred guineas be donated to the Southport Infirmary Children's Toy Fund.
The idea for the play came from a real-life crime tragedy, the Dennis O'Neill case, of 1945 with the death of a boy in foster care. Christie's official biography states that the name of the boy was Daniel O'Neill but contemporary newspaper reports state the name of the boy as Dennis O'Neill.
No recording of the original radio play exists and the script is not commercially available.
Director/Producer: Martyn C. Webster
Cast:
"Barry Morse" played Giles Davis
"Belle Chrystall" played Molly Davis
"Gladys Young" played Mrs Boyle
"Richard Williams" played Major Metcalf
"Raf De La Torre" played Mr Paravicini
"Allan McClelland" played Christopher Wren
"Lewis Stringer" played Detective-Sergeant Trotter
"Lydia Sherwood" played Mrs Lyon
Other parts were played by Marjorie Westbury, David Kossoff and Duncan McIntyre
1947 television short.
Later, the radio play was developed for television, and broadcast as a 30-minute BBC short on 21st October 1947. The television version was directed by Barrie Edgar, and starred John Witty as Giles Davis.
1948 short story.
At some point soon after transmission of the radio play, the suggestion was made to Christie that she turn it into a short story. This was published in the US in "Cosmopolitan" magazine in May 1948 and then in the 1950 US collection "Three Blind Mice and Other Stories". The story has never been published in the UK, at Christie's request; she asked that the short story not be published in the UK as long as the stage play "The Mousetrap" continued to run.
1950 television movie.
The story was adapted as the ninth episode of the CBS anthology series "Sure as Fate", airing on 31st October 1950.
1952 stage play.
Christie saw the potential of expanding the half-hour radio play into a full theatre play and in 1952, "The Mousetrap", the play that has the longest initial run of any play in the world, first came to the stage. As another play had run on the stage just prior to the Second World War also with the title "Three Blind Mice", Christie had to change the name. It was her son-in-law, Anthony Hicks, who suggested "The Mousetrap", which is taken from Act III, Scene II of Shakespeare's "Hamlet". Allan McClelland, in the role of Christopher Wren, was the only actor to make the transition from the radio production to the stage play.
The text of the play was published in 1954 by Samuel French as 'French's Acting Edition No 153' and also in the HarperCollins 1993 collection "The Mousetrap and Other Plays" ().
1956 Brazilian television adaptation.
The story, under its Portuguese language title of "Três Ratinhos Cegos", was adapted for Portuguese television, being broadcast on 21 January 1956.