Where is the settings on iMovie on the Mac?

In iMovie on a Mac, you can access the settings by clicking on the "iMovie" menu in the top left corner of the screen, next to the Apple logo, and then selecting "Preferences." This opens a window where you can adjust various settings related to playback, audio, and video quality. Additionally, project-specific settings can be accessed by selecting a project and clicking on the "Settings" gear icon in the upper right corner of the project workspace.