The girl approaches the theater, which moves faster than the skyline, creating an illusion of depth. The usher does a take, noticing the customer, and turns to keep looking at her as she gets closer.
In animation, a take is when a character reacts to something. It requires a starting state, an anticipation, and a reaction. In our case, the usher is staring out the window, which is his starting state. He squints upon hearing something, which is his anticipation. He turns toward the sound – his reaction.
First, let's set the stage.