From the liner notes

While elder sister Norma devoted herself to tear-stained romance and tragedy, Constance Talmadge carved out her own reputation in a series of bubbly, Lubitsch-flavored comedies. Often appearing as the “virtuous vamp,” (a mesmerizing beauty who could be naughty yet nice), Constance had looks and comic timing that are as modern today as they were eighty years ago.

In Her Night of Romance, an heiress traveling in England disguises herself to discourage fortune-hunters. She falls in love with a handsome nobleman (Ronald Colman) who is secretly impoverished. When they spend a night alone at his former estate, they are forced to pretend that they are married, a situation that threatens to unravel their storybook romance just as it is getting started.

Her Sister from Paris allowed Talmadge to demonstrate her comic range in dual roles: a frumpy-but-faithful housewife and her sophisticated twin sister. When a hausfrau’s husband (Colman) begins to lose interest in his wife, the arrival of her twin, a dancer and “woman of the world,” provides just the right impetus to reinvigorate their relationship.