The digital IMAX aspect ratio of Spider-Man: Brand New Day is 1.90:1. The film also uses a wider 2.39:1 ratio for standard wide-screen presentation.
Aspect ratio describes the relationship between an image’s width and height. A 1.90:1 frame is taller than a 2.39:1 widescreen frame, allowing digital IMAX presentations to show more vertical image area.
The choice fits a modern blockbuster designed for multiple theatrical formats. Spider-Man’s movement through city streets, rooftops, and large action sequences can benefit from the additional height available in IMAX-compatible presentation.
The ratio is not the same thing as image resolution, screen size, or camera model. Brand New Day was photographed with an Arri Alexa 265, but the camera itself does not determine the final theatrical aspect ratio.