In yet another bizarre twist in the Facebook story, now  made very public by “The Social Network” movie, a man who was partnered with the Winklevoss twins in a business venture is now suing them for a slice of their Facebook cut. Chang and the Winklevoss brothers merged the Winklevoss property, ConnectU, with Chang’s web development business. As part of the settlement with Mark Zuckerberg, the Winklevoss twins sold ConnectU to Facebook for millions of dollars, and Chang was essentially cut out of that deal. According to his complaint, he and the Winklevoss duo “expressly agreed that the litigation…