Is the A24 Movie ‘Onslaught’ Streaming on Netflix or HBO Max?

By Anna Menta Published Sep. 3, 2026, 11:30 a.m. ET Adria Arjona is getting bloodied up in her new pulpy, R-rated A24 action thriller Onslaught, which opens in U.S. theaters nationwide this weekend. Directed by Adam Wingard and written by Simon Barrett—who also collaborated on the 2014 action horror flick The Guest—Onslaught tells the story of an Army sniper named Celeste (Arjona), who is forced to bring out the big guns to defend her trailer park home from a group of super soldier killing machines, who escape from a nearby secret military base. If you loved Dan Stevens in The Guest, good news: Stevens is in this film, too, as Dr. Hans Kammler, and Wingard has confirmed that Onslaught takes place in the same town and universe as The Guest. Intriguing! Also starring Eric Wareheim, Reginald