Open Matte refers to a version of a film where the original camera negative is presented without the intended theatrical matte (masking) applied.

Blade Runner 2049 Open Matte 4K: Experiencing the Full Visual Mastery

Blade Runner 2049 (2017), directed by Denis Villeneuve and shot by the legendary cinematographer Roger Deakins, is widely considered a modern visual masterpiece. While the official 4K Ultra HD Blu-ray release is stunning, a dedicated community of cinephiles and enthusiasts has long sought out a different version of the film: the edition.

Cinematographers frame for a specific ratio. When you open the matte: