**"Onslaught," Adam Wingard’s A24 action-slasher starring Adria Arjona as a trailer-park Army sniper battling escaped genetically engineered super-soldiers, opened to mixed-positive early reviews after the August 31 embargo lift.** Critics have highlighted its gritty ’80s grindhouse aesthetic, bloody set pieces, synth score, and Carpenter-esque intensity, with some calling it Wingard and writer Simon Barrett’s most visually accomplished work in their shared universe with “The Guest.” Others note familiar plotting, an undercooked narrative, and a slow build to the action, resulting in Tomatometer scores clustered in the low-to-mid 80s (roughly 79–85% across 12–22 reviews) alongside a 52–54 Metacritic. With the September 4 wide release imminent on Labor Day weekend, additional critic verdicts and the first audience Popcornmeter reactions will determine the final certified score; traders are watching for any late swings in consensus before the Tomatometer locks in.