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the fact that this brief minute of film contains some of the first words spoken on film - and that they should be quite so saucy. When Alfred Hitchcock decided to shoot his thriller 'Blackmail' in newfangled sound as well as a silent version, he was faced with a number of dilemmas. One of the biggest problems was with his leading lady, the Polish-Czech Anny Ondra, who had not been employed for the authenticity of her English accent. This is the sound test that Hitchcock made. One of the results was that Ondra's lines in the sound version were dubbed live, off-screen, by the rather more English-sounding Joan Barry. (Robin Baker) All titles on the BFI Films channel are preserved in the vast collections of the BFI National Archive. To find out more about the Archive visit http://www.bfi.org.uk/archive-collections Follow us on Twitter: https://twitter.com/BFI Like us on Facebook: https://www.facebook.com/BritishFilmInstitute Follow us on Google+: https://plus.google.com/+britishfilminstitute/