Sinemia, an online-movie ticketing business started by a Turkish developer, is in talks with U.S.-based venture-capital investors to fund an expansion in the world’s largest cinema market. The company is seeking to attract $50 million by mid-2019, Rifat Oguz, who founded Sinemia in 2015, said in an interview in Istanbul. It has already sold 30 percent to investors including Mountain View, California-based 500 Startups Management Co., Aslanoba Capital and Revo Capital Management, the former Turkcell Iletisim Hizmetleri AS engineer said.