The Last Halloween (10:16)
Dread Central; Dust; Facebook; Film Shortage; Halloween Short Films; Horrors of Halloween; iHorror; IMDb; PopHorror; YouTube

This 2014 short film was presented by Alter in 2019 (and re-released in 2023), but I first saw it elsewhere.

This is set in what appears to be a post-apocalyptic world of some sort. Four kids dressed as a ghost, a devil, a witch, and the grim reaper, go trick-or-treating. But not everyone is willing to give them any treats... and that's not a good idea. Beyond that... I don't want to spoil anything. I'll just say that the visual effects get cool, in the end. And upon rewatching it some years after I first saw it, I liked it more than I originally did.