Our Betters (1933)

Soon after being wed, American heiress Lady Pearl Grayston (Constance Bennett) realizes her husband has married her for her money and is keeping a mistress. The two maintain a loveless marriage, a trade-off Pearl accepts in order to gain admittance to her husband's aristocratic social circle. While Pearl pursues her own affair with gigolo Pepi D'Costa (Gilbert Roland), her visiting sister, Bessie (Anita Louise), arrives and is appalled when Pearl's arrangement is revealed.