But there are nearly as many DC movie sequels that are so relentlessly bland that they don’t even deserve a spot in one’s memory. Videos by ComicBook.comHere are five DC sequels that had nothing of substance to contribute to their overarching franchise, much less superhero cinema as a whole. 5) Supergirlimage couresty of tri-star picturesTechnically, Supergirl is a sequel to the first three Superman movies. 2) The Return of Swamp Thingimage courtesy of millimeter filmsReleased the same year as Tim Burton’s Batman, The Return of Swamp Thing is a relatively unheard-of superhero movie sequel following a relatively unheard-of superhero movie. Not to mention, it ends on one of the most unsatisfying notes in superhero movie history.