Night Must Fall is a 1937 film adaptation of the Emlyn Williams play of the same name. It was directed by Richard Thorpe and adapted by John Van Druten. It stars Robert Montgomery, Rosalind Russell, and Dame May Whitty. Whitty reprised her role in the stage drama in London and New York. It was remade in 1964 with the same title, starring Albert Finney, albeit with less success.