Aspect ratio
The size of the film strip does not necessarily say anything about the aspect ratio in which the film is projected. Today, 16:9 (1.78:1) is a standard ratio for film, while 4:3 (1.33:1) used to be a popular format. The 70mm print of The Brutalist has a ratio of 1.66:1, which is also known as European widescreen. Although the carrier does not necessarily say anything about the aspect ratios or the size of the projection, it does by definition say something about the sharpness of the image and the saturation of the colours, because a larger negative can capture more light and more details.