Since Gov. Phil Murphy’s announcement that movie and performing arts theaters and other indoor entertainment venues could reopen in New Jersey on Sept. 4, the Manahawkin Regal is a #CinemaSafe multiplex with six movies now (or soon) showing: “Tenet,” “The New Mutants,” “The Personal History of David Copperfield” and “Unhinged,” with preorder tickets now on sale for “The Broken Hearts Gallery” and “Infidel.”