Try some of the following steps to create a suitable background for the animation and to add the remaining elements seen in this chapter's sample movie:
Create a white solid that's the same size as the composition, and use the Rectangular Mask tool in Subtract mode to make the project's white letterbox.
Add symbols that represent city life, and scroll them across the bottom of the screen. We used the Webdings font to create these in the project's sample movie, and we applied blending modes to integrate them into the background.
Add the background movie from the Chapter 04 folder on the book's DVD, and add Blur and Levels effects to it to enhance its impact. Apply a Drop Shadow effect to the topmost LA HI-RISE text layer to give a sense of depth.