How Talkies TalkDocumentary58How Talkies Talk58Documentarythumb_upthumb_downHow Talkies TalkJanuary 1, 1934Directed byDonald CarterDocumentary explaining how double bilateral variable area optical soundtracks are recorded onto film and played back in cinemas.GB content warning Last Updated: January 8, 2026 Request Update CastNoel Birkin