Cottage to Let is a 1941 British spy thriller film directed by Anthony Asquith starring Leslie Banks, Alastair Sim and John Mills.

[3][4] The film was shot at the Lime Grove Studios in London, with sets designed by the art director Alex Vetchinsky.

[6] John Barrington, a talented but eccentric inventor, is working at his Scottish country home on a new bombsight for the RAF.

But since Charles Dimble has been let the cottage by an estate agency, Mrs. Barrington decides they can only take one evacuee, a cocky teenager named Ronald .

Ronald is shocked when Perry is revealed to be a German intelligence agent, plotting to fly Barrington to Berlin by seaplane.