Dr Keith Johnston, an academic from the University of East Anglia, has decided to mark the 80th anniversary of Ealing Studios in his own way, by attempting to watch the whole back catalogue of almost 100 films.

The Today programme's Justin Webb met up with Keith and the BFI's Ealing expert Mark Duguid to watch the 1944 film We Came To A City at a special screening at the British Film Institute.

Film sound courtesy of Studiocanal.

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