How to change center point of a movie clip

Ok, I’m just getting into some game development. What I’m trying to figure out right now is how to move the rotation point of a movie clip.

The idea behind this is that I’m making an overhead view game. My main character will stay fixed near the bottom of the screen and only face up. the Left and Right keys will be used to rotate his direction - but in reality the ground is what is rotating, since the main character never actually changes positions.

The problem is that when i get away from the center of the ground movie clip, it’s more like I’m swinging around the image, because it’s rotating the ground movie from the center of the movie clip, rather than my hero’s center position. How can i get the rotational point of the ground to always be at the center of my hero character?