Barbie cosplayers pose outside the convention center during San Diego Comic-Con International in San Diego, California, on July 20, 2023 Have movies — and movie theaters — finally made their post-pandemic return? With legions of pink-clad moviegoers swarming theaters, Warner Bros.’ “Barbie” conquered North American box offices in its debut weekend, raking in $155 million, Sunday estimates showed — nearly double the cash of its…