In this case the aspect ratio is 1.33, different from 35mm film. Each doubling of the ISO number indicates a doubling in film speed so each of these films is twice as fast as the next fastest. Image sensors are also rated using equivalent ISO numbers. Higher ISOs enhance freezing motion and shooting in low-light. Some cameras have more than one ISO rating.
Some cameras even increase the gain automatically.
The image sensor in your camera has an impact on the images you take. All film cameras are just dark boxes into which you can insert any kind of film you want. It's the film you choose that gives photographs distinctive colors and tones. If you think one film gives images that are too blue or red, you can change to another film.