Cameras are expected to start rolling by the end of March at the Medient Studioplex in Effingham County, with the studio’s first film rolling out about a year later. The movie studio to be built on more than 1,500 acres in southern Effingham County is on schedule to be up and running by the end of the first quarter of 2014 with its first film “probably released (at the) beginning of ‘15,” Medient CEO Manu Kumaran said at Thursday’s groundbreaking ceremony. “I’m feeling very good about it,” Kumaran said of the ambitious timetable.