Final answer:
IMAX film has a larger frame size than 70mm film, allowing for larger and higher-quality images, and IMAX theaters usually have larger screens, delivering a more immersive experience.
Step-by-step explanation:
When comparing IMAX to 70mm film, the term 'larger' can refer to both the physical film size and the scale of the image projected. IMAX film has a larger frame size than standard 70mm film. The size of an IMAX frame is about 70mm tall and 48.5mm wide. In contrast, traditional 70mm film has a frame size of 70mm wide by about 48.5mm tall. This means that IMAX film allows for a larger and higher-quality image; hence, IMAX is generally considered to be the 'larger' format. IMAX theaters also typically feature much larger screens than those found in typical cinemas, which can amplify the sense of immersion for the viewer.