Journalist and screenwriter Rula Jebreal will marry entrepreneur and wealthy banking scion Arthur Altschul Jr. in a private ceremony in the Hamptons next weekend. The two are expected to say “I do” in front of about 100 guests. We hear his best man will be longtime friend John Miller, the CBS correspondent and terrorism and intelligence expert who’s married to Arthur’s sister, Emily. Arthur’s other sister, Serena Altschul, is a journalist who worked for MTV for years. Page Six in May revealed exclusively that Rula and Arthur, the son of former Goldman Sachs partner, philanthropist and art collector Arthur Altschul, were engaged. This is the first marriage for Arthur; Rula has a teenage daughter, Miral, from a previous relationship, who will also participate in the ceremony. Rula previously dated artist and director Julian Schnabel. He is now engaged to model May Andersen, who gave birth to the couple’s first child, Shooter Sandhed Julian Schnabel Jr., in July.