In the series finale of “Stranger Things,” Jonathan Byers (Charlie Heaton) ends up being a student at New York University in pursuit of a filmmaking career, and he tells his pals that he’s working on an “anti-capitalist cannibal movie” titled The Consumer. Were creators Matt and Ross Duffer hinting at an in-universe spinoff movie down the road? Actually, the brothers were referencing a cannibal short film they already made together nearly 20 years prior!

The Duffer Brothers got their start directing a couple short films before they got around to...