Few suc­cess­ful hor­ror movies have been as con­tro­ver­sial within the hor­ror com­mu­nity as the first Paranormal Activity.  This cheaply pro­duced but con­cep­tu­ally savvy ghost story was mostly received by hor­ror fans in two ways: either as proof that low-budget hor­ror films could still be inven­tive and acces­si­ble or as a second-rate recy­cling of The Blair More >