TMDb/Rosebush Pruning Celebrity Elle Fanning navigates a wealthy family's dark secrets in Rosebush Pruning, a satirical thriller with Jamie Bell, Riley Keough & Pamela Anderson. Summer 2026. March 28, 2026 AceShowbiz - Elle Fanning takes center stage in the newly released trailer for Rosebush Pruning, a satirical thriller set to debut in summer 2026. The film explores the unsettling dynamic of her character Martha, who is introduced to the dangerous and violent family of her boyfriend Jack, played by Jamie Bell.