Watch The Legend of Helium Mary Online Avalaible Now [ FREE ] Select your Language : The Legend of Helium Mary was entirely shot at the January, 2020 edition of the Horror-on-Sea Film Festival in Southend, U.K., featuring a cast of festival regulars. Watch movie online - EN Watch Movie trailer Download Links - EN Language SD Quality - EN HQ Quality - EN HD Quality - EN HD Quality - EN 4K Quality - EN 8K Quality - EN