Assignment in Brittany

Assignment in Brittany is a 1943 war film directed by Jack Conway and starring French actor JeanPierre Aumont and Swedish actress Signe Hasso, both in their American film debuts. The film was adapted from a novel by Helen MacInnes which was serialized in The Saturday Evening Post from Mayto June 20, 1942. When MGM bought the screen rights in February 1942, the novel was titled Cross Channel.The working title of this film was Fire in the Night.

At the Corlay family farm, Madame Henriette Corlay Margaret Wycherly, Bertrands mother, eventually realizes Matard is not her son, but does not give him away, as she disapproves of Bertrands cooperation with the Germans. Matard has better luck fooling both Anne Pinot Susan Peters and Elise Signe Hasso, Bertrands fiancee and mistress respectively.After French Resistance contact Louis Basdevant is unmasked as a turncoat, Matard forces him at gunpoint to get him into a heavily guarded town. When the masquerade is uncovered, Matard shoots Basdevant and a German officer and escapes by jumping in the harbor. There, he witnesses a Uboat entering a hidden pen. ........

Source: Wikipedia