Bride by Mistake

Bride by Mistake 1944 is an American romantic comedy film directed by Richard Wallace, and starring Alan Marshal and Laraine Day.

Home from the war, Captain Tony Travis Alan Marshal eyes an estate in Santa Barbara and wonders what it must be like to be that rich. It is the property of the fabulously wealthy Nora Hunter Laraine Day, who has secretary and friend Sylvia Lockwood Marsha Hunt impersonate her in public. Longtime guardian Jonathan Connors Edgar Buchanan protects his wards privacy zealously. During a ship launching, a press photographer takes Noras picture, but Connors sees to it that the camera film is ruined.Sylvia tells Nora that she is quitting so that she can accompany her husband, Phil Vernon Allyn Joslyn, whose job requires him to move to Washington. Nora decides to marry her fiance Donald William Post Jr. so that Sylvia can be her maid of honor at her wedding, but when Donald returns from military duty, he breaks the news that he has fallen in love with someone else. ........

Source: Wikipedia