A Little Brother of the Rich (1915)

While working his way through college, Paul Potter acquires a flock of wealthy friends who encourage him to give up his hometown fiancée, Sylvia Castle, for Muriel Evers, a flirtatious married woman. After Sylvia releases Paul, and Muriel's husband divorces her for infidelity, Paul and Muriel marry. Meanwhile, when Sylvia's father dies after being ruined in the stock market, she goes from one job to another in the city until she tries acting in a stock company. There she befriends Henry Leamington, an alcoholic leading man, who, as he tutors her, falls in love and stops drinking because of her. When Paul discovers Muriel's unfaithfulness, he renews his acquaintance with Sylvia, who still loves him.