Half a Bride (1928)

"Trial marriage. Front pages of the papers preach it. Disappointed couples advocate it. Come see the experiment put to the test in as entertaining a screen story as you've seen in months."

Patience Winslow is an impulsive heiress who marries a much-older man whom she really doesn't love. While honeymooning on her yacht without her new husband, Patience is marooned on a desert island with handsome Captain Edmunds. Her head full of notions that she's gleaned from radio dramas and pulp novels, Patience demands that she and Edmunds enter into an in-name-only marriage, observing the responsibilities and proprieties of matrimony without the sexual entanglements. Complications naturally arise.