On the use of aspect ratio as an expressive tool, with examples.

Aspect ratio — the proportional relationship between a frame's width and height — is one of the most underappreciated formal choices a filmmaker makes. It determines what kind of visual information the frame can contain and what must be left outside it.

Widescreen formats (2.39:1 or 2.35:1) favor landscape, groups, and horizontal movement. They are most useful for films where the relationship between characters and environment is central to the argument. Westerns, science fiction films, epics — the widescreen format exists in dialogue with the content it typically holds.

The Academy ratio (1.37:1) or the 1.33:1 format creates a nearly square frame that favors the face and the single figure. Kelly Reichardt's Meek's Cutoff and First Cow, Pawel Pawlikowski's Ida and Cold War, Yorgos Lanthimos's The Favourite — these films use the squarer format to create a specific relationship between subject and space.

The middle format (1.85:1) is the standard theatrical format for most American films: wide enough to feel cinematic, narrow enough to feel contained. Its very neutrality makes it the default against which other choices are significant.

The streaming era has created a new problem: platforms that crop or reformat films for display, eliminating choices that were part of the film's grammar. This is not a minor technical matter. It changes what the film means.