The Clue of the New Pin is a 1929 all-talking sound British crime film directed by Arthur Maude and starring Benita Hume, Kim Peacock, and Donald Calthrop.
The soundtrack was recorded using the British Phototone sound-on-disc system.
The first all-talking British feature production, a film entitled Black Waters, had been produced in the United States due to a lack of sound recording equipment in Britain.
[3] This film is an adaptation of the 1923 novel The Clue of the New Pin by Edgar Wallace.
A wealthy recluse is murdered in an absolutely sealed room.