Photo from Instagram/@sinegangdotph MANILA — More than five decades after Tinimbang Ka Ngunit Kulang introduced Christopher de Leon to movie audiences, the actor returned to the Lino Brocka classic at the Philippine premiere of its restored 4K version. The Sept. 4 screening at Red Carpet Cinemas in Shangri-La Plaza opened Film Industry Month, which the Film Development Council of the Philippines is using…