Before opening iMovie, make a folder in the COMM Drive. The COMM Drive is an internal hard drive that is dedicated to storage of all Communication projects.
If you haven't already, create a new folder in the COMM Drive so you will have your own area to save your project files.
Open iMovie via the Dock normally located at the bottom of the screen or under the finder menu bar: Go > Applications > iMovie.
∴Please note that this tutorial is designed for general editing on iMovie machines in ACD 403.