How to Create a 3D film strip effect with masks in Motion

In Motion, as in Final Cut Pro, masks are an essential special effects tool. In this software guide, you'll learn how to create a film strip effect. Whether you're new to the Apple's popular motion graphics editor/compositing application or simply wish to get better acquainted with the program, you're sure to find value in this tutorial. For more information, including step-by-step instructions, take a look.