My Wife's Relatives (1939)

It all begins when Joe Higgins, business manager of a prosperous candy-manufacturing firm, is ordered by his pompous boss Ellis to break up the romance between Ellis' son Bill and Joe's daughter Jean. Refusing, Joe quits his job and sets up his own candy company. It's a money-losing enterprise until Joe's wife Lil loses her diamond ring in a batch of candy and offers a $5000 reward to anyone who can retrieve the ring.