<Li> Géhane Strehler as Mrs Forrester, teacher at the school </Li> <P> The film was announced on 15 February 2017, as the first commission for Pinewood Television and SunnyMarch TV for BBC One, with Benedict Cumberbatch cast as Stephen Lewis . Kelly Macdonald, Stephen Campbell Moore and Saskia Reeves joined the cast in April 2017 . Filming started in April 2017 in London . </P> <P> Film locations in London included a Co-op supermarket in Crouch End, Hornsey Town Hall and the National Theatre in Lambeth . Other locations include Shingle Street, a hamlet on the Suffolk coast . </P>

Where was 'the child in time' filmed
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