My Favorite Wife (1940)

Ellen Arden arrives 7 years after being given up for dead in a shipwreck, to find her husband Nick just remarried to Bianca. The overjoyed Nick awkwardly tries to break the news gently to Bianca. But before he can do that, an unpleasant surprise--news that Ellen has spent the 7 years on a deserted island with fellow-survivor Burkett. Nick's jealousy tries to find out the truth. Hilarious confusion reigns before Nick chooses his favorite wife.