His Bridal Night (1919)

Vi Playfair confesses to her twin sister Tiny that she is planning secretly to meet Lent Trevett, who loves her, to say goodbye, on the eve of her wedding. Tiny, who herself loves Lent, meets him instead and passionately kisses him, leaving Lent, who thinks that Tiny is Vi, to assume that Vi loves him. The next day, after the marriage ceremony, Lent convinces the flighty Vi that her husband Joe is a bully and that she should leave with him. Tiny sees them embrace, and to teach Vi a lesson, she impersonates her sister and goes with Joe on their honeymoon. Vi, now jealous, follows, and in turn is followed by Lent. At the honeymoon cottage, Vi proves to Joe, by a mole on her leg, that she is his wife, and promises Tiny that she will give up flirting. After Tiny convinces Lent that it was she that he kissed, the couples are happily reunited.