La Loi du nord ([la lwa dy nɔʁ], "The Law of the North"; also called La Piste du Nord, "The Northern Trail") is a 1939 French adventure drama film directed by Jacques Feyder who co-wrote screenplay with Alexandre Arnoux and Charles Spaak, based on novel "Telle qu'elle était de son vivant" by Maurice Constantin-Weyer. The films stars Michèle Morgan, Pierre Richard-Willm and Charles Vanel. It tells the story of an escaped prisoner, his woman secretary and two guardsmen in the Far North. It was entered for the Grand Prix du Festival International du Film at the 1939 Cannes Film Festival.