From director Adam Wingard and starring Adria Arjona, Alex Pereira, Drew Starkey, Rebecca Hall, Reginald VelJohnson, Michael Biehn, Eric Wareheim and Dan Stevens. ONSLAUGHT – In Theaters September 4. RELEASE DATE: September 4 DIRECTOR: Adam Wingard CAST: Adria Arjona, Alex Pereira, Drew Starkey, Rebecca Hall, Reginald VelJohnson, Michael Biehn, Eric Wareheim and Dan Stevens