Step 1: Open the iMovie Application and click on add new project Option. There, you will need to click on the “Trailer” option.
Step 2: Now, you will have loads of iMovie Trailer templates available to the screen. You can move the cursor to any template and click on the play button to watch it.
Step 3: Depending upon your preferences, click on the desired template and then click on the create option. At last, make sure to click on the “Ok” button.