
Export a movie, trailer, or clip as a file in iMovie on Mac
You can export a movie, trailer, or clip as a file to use with other apps. You can only export one item at a time.
- In the iMovie app  on your Mac, select a movie, trailer, or clip in the browser. on your Mac, select a movie, trailer, or clip in the browser.
- Choose File > Share > File. 
- In the dialog that appears, do any of the following: - Set the title of the shared movie: Click the name at the top, and type a new name. 
- Set the description of the shared movie: Click in the Description field, and type new text. 
- Set tags for the shared movie: Click in the Tags field, and type tag names separated by commas. 
- Set the output format of the shared movie: Click the Format pop-up menu and choose an option. - You can choose to export video and audio, or just audio. 
- Set the resolution of the shared movie: Click the Resolution pop-up menu and choose an option. - Note: You can export a 4K clip or movie in its native resolution. 
- Set the output quality of the shared movie: Click the Quality pop-up menu and choose an option. - To manually set the output quality of the shared movie, click the Quality pop-up menu, choose Custom, and drag the slider to set the target bit rate. - As you drag the slider, the estimated file size that appears below the preview thumbnail is updated. 
- Choose a compression setting: Click the Compress pop-up menu and choose an option. 
- Speed up the export with simultaneous processing: Select the “Allow export segmentation” checkbox to speed up exports of projects that are approximately 3 minutes or longer. iMovie sends segments of your video to available media engines for simultaneous processing. - Note: Export segmentation requires macOS Sonoma or later and a Mac with Apple M1 Max, M1 Ultra, M2 Max, M2 Ultra, or M3 Max. 
  
- Click Next. 
- In the dialog that appears, type a name in the Save As field, or leave the default name, which is the name of the movie, trailer, or clip. 
- Navigate to the location where you want to save the file, and click Save. - A progress indicator appears on the right side of the toolbar. Click the progress indicator to see details. The indicator disappears when the operation has finished.  - After the share process is complete, the movie opens in QuickTime Player. A “Share Successful” notification also appears.