On this day in movie history - Gaslight (1940):

Gaslight,

directed by Thorold Dickinson,

written by A.R. Rawlinson and Bridget Boland,

based on the play Gas Light by Patrick Hamilton,

was released in the United Kingdom on June 25, 1940.
Music by Richard Addinsell.

Cast:
Anton Walbrook, Diana Wynyard, Frank Pettingell, Cathleen Cordell, Robert Newton, Jimmy Hanley, Minnie Rayner, Marie Wright, Aubrey Dexter, Mary Hinton, Angus Morrison, Jack Barty, The Darmora Ballet.