That same sensation is one of the things that makes Weapons such an unforgettable, and deeply scary, horror film. In an interview with Inverse, Cregger and his cast explain the importance of that cliffhanger, and the ending we almost got instead. Weapons Ending Explained2:17 a.m. is the moment everything changes in Weapons. Things were even more elusive in the ending Cregger initially had planned, which left us staring into the vacant eyes of Archer’s son, Matthew, with no additional context from the narrator who opened the film. But people were not stoked on that.”The reaction from the audience at Weapons’ first test screening ultimately determined the film’s fate.