Her Sister from Paris

Her Sister from Paris (1925) starring Constance Talmadge, Ronald Colman, George K. Arthur
In Vienna a famous novelist and his wife have an argument and she leaves to go and stay with her mother. At the railway station she meets her identical twin, a celebrated dancer in Paris, who agrees to play a trick on her husband to help rekindle their marriage. Before long both the novelist and his friend, an official at the British Embassy, have fallen in love with her.