Here below the trailer of Miss Pettigrew Lives for a Day:
"Guinevere Pettigrew, a middle-aged London governess, finds herself unfairly dismissed from her job. An attempt to gain new employment catapults her into the glamorous world and dizzying social whirl of an American actress and singer, Delysia Lafosse." (Source: IMDb)
Looks a good entertaining movie! I love the late 193O's atmosphere of this movie and Frances McDormand seems really involved in her role.