Chapter 51

The film centers on the production of Dissident, a $500 million high-profile film during which three actresses are murdered by an unidentified serial killer known as the "Hollywood Killer". As the killings disrupt the production and suspicion falls on those involved with the film, the murders become the subject of an unresolved investigation. Years later, former FBI agent Thomas Scott reexamines footage from the production and interviews those connected to the case in an attempt to identify the killer.

• Tyler Shields as Thomas Scott, a former FBI agent who reopens the Hollywood Killer case.
• Colman Domingo as Christopher Demy
• Abigail Breslin as Ava Bergman
• Emily Alyn Lind as Effy Mankiewicz
• Charlotte Lawrence as Greata Daniels
• Connor Paolo as Christopher Pace

The film was executive produced by Kenan Thompson through his independent studio Artists for Artists, which supported Shields in developing and testing the film's visual approach. Giovanni Ribisi and Todd Mandel produced Chapter 51 alongside Shields, while John Ryan Jr., and Tyler Transki were among its executive producers. The film was produced by Artists For Artists and acquired for North American distribution by Cineverse.

Made with a small film crew, for the cinematography of Chapter 51, director Tyler Shields shot using multiple different film formats, film gauges, and camera systems to distinguish the film's more than 20 fictional film productions, including 8 mm film, 16 mm film, 35 mm film, VistaVision, Ultra Panavision 70, and IMAX 70mm film, in order to give each film a distinct visual style. In creating a new format, a prototype anamorphic format IMAX lens system was developed for the production following discussions between Shields and Panavision lens designer Dan Sasaki, which stretched the IMAX 70mm films native aspect ratio from 1.44:1 to 1.90:1. Sequences were also filmed using anamorphic lenses on VistaVision cameras, making Chapter 51 the first film to use the Technirama process since the 1960s. Shot on Kodak film, the film was additionally filmed using a variety of different film stocks, including contemporary stock, Vision2 200T, vintage film from the 1970s, and recanned unused film from The Matrix (1999). Sequences depicting silent films were photographed with a hand-cranked camera, while sequences based on large-format films of the 1950s and 1960s used Ultra Panavision cameras and lenses associated with films including Ben-Hur (1959) and Lawrence of Arabia (1962), as well as lenses previously used by director Stanley Kubrick. Overall, 140 sets of camera lenses were acquired for the production, only 40 of which were not used. The various formats were combined during editing producing variations in image texture, colour response and aspect ratios. Shields edited the film using Da Vinci Resolve and also created the films color grading, while Neuman Mannas served as the musical composer in his feature debut.

Chapter 51 premiered in New York City on April 14, 2025. The film was released for a theatrical limited release as well as digitally for video on demand on June 23, 2026.

On review aggregation website Rotten Tomatoes, Chapter 51 has a rating of 64% based on 14 critics' reviews.