What term describes the space left in front of a person moving on the X axis toward the edge of the frame?

The term that describes the space left in front of a person moving on the X axis (which refers to horizontal movement) toward the edge of the frame is leadroom. This concept is important in framing a shot because it ensures that there is enough space in front of the subject to create a sense of movement and allow the viewer's eye to follow the action. Without adequate leadroom, the composition can feel cramped, and it may not convey the intended motion effectively.

In contrast, the concept of framing relates broadly to how subjects and elements are positioned within the shot. Headroom refers specifically to the space above a person's head in a frame, ensuring that the subject is not too close to the top edge of the frame. Offscreen space refers to the areas outside the frame that the audience knows exist, but are not visible, such as characters or objects that are part of the scene but are currently out of view. Each of these terms serves specific purposes in cinematography, but leadroom is distinct in its focus on the area ahead of a moving subject.