10 Horror Movies That Teased A Sequel Which Never Happened

10. Brightburn

James Gunn has made a name for himself in and among the world of superheroes, but he started off in the horror genre with his feature film directing debut, Slither. 13 years later, he would produce Brightburn, something of a mix between the two genres he became known for. 

The story, written by Gunn's cousin and brother, essentially flipped the tale of Superman on its head, and showed the fallout of a powerful alien landing on Earth without the unwavering intrinsic good of Clark Kent. Arguably the film could have gone further with its themes of horror and gore, but it was still a popular, successful outing.

As with most any comic book movie, there was a tease during the credits. Michael Rooker appeared hosting a YouTube video detailing other super human beings that were out there, including a half man, half sea creature, some kind of witch woman, and what appeared to be an image of an alien.

Such references, the sea creature being Rain Wilson's Crimson Bolt from Super, were supposed to lead to a sequel, but Gunn's commitments to The Suicide Squad and Guardians of the Galaxy saw it put on the back burner, before it was discarded altogether.